A colleague mentions that somebody in their family has been diagnosed with cancer.
A friend describes a symptom that led to an unexpected hospital appointment.
You watch an interview with somebody who ignored an apparently minor change in their body. Later that evening, you notice something similar.
The story may not have been about you, yet your attention has already moved towards your own health.
You check the same part of your body. You compare your symptoms with theirs. You try to remember how long the sensation has been there and whether it has changed. A detail that would normally have passed without much thought suddenly feels important.
Hearing about an illness can trigger health anxiety because the information becomes personally significant. Your attention moves towards possible similarities, ordinary physical sensations become easier to notice and your mind starts trying to establish whether the same thing could be happening to you.
The illness story provides the possibility. Body checking, searching and reassurance then make that possibility feel increasingly relevant.
I am Louise Squires, a Clinical Hypnotherapist and Psychotherapist specialising in anxiety, panic, phobias and the automatic patterns that keep them active. I work privately from Cavendish Square in London’s Harley Street medical district and online throughout the UK.
Why does somebody else’s diagnosis suddenly feel relevant to me?
Your mind is designed to learn from information about potential danger.
If somebody describes an illness, particularly one that appeared unexpectedly or was initially missed, your attention may immediately search for connections.
“They had headaches. I have headaches.”
“They felt tired for months. I’ve been tired recently.”
“They thought it was anxiety at first. What if that is happening to me?”
The similarity can feel highly significant because your mind is temporarily giving illness-related information priority. Details that match your experience stand out. The differences receive much less attention.
You may not know the person’s age, medical history, risk factors, examination findings or the full sequence that led to their diagnosis. One familiar symptom can still create the feeling that their story is warning you about your own health.
Research has found evidence of greater attention being maintained on health-threatening information among people with elevated health anxiety, although health anxiety is complex and no single mechanism explains every person’s experience. Read the systematic review and meta-analysis on PubMed.
What does this health-anxiety pattern look like?
The response can begin with a conversation, social-media post, news report, television programme or podcast.
You may:
- Check whether you have the symptom being discussed
- Press, examine or compare a particular area of your body
- Search for the illness and read its symptom list
- Look for stories from people who were initially reassured
- Ask somebody whether they have noticed a change in you
- Reconstruct recent months looking for overlooked warning signs
- Check your NHS app or previous test results
- Avoid the person, programme or conversation because it feels too activating
- Feel briefly reassured before another similarity appears
- Continue thinking about the illness long after the conversation has finished
You might tell yourself that you are simply being responsible. The difficulty is that the investigation rarely reaches a point where your mind declares the question finished.
Why do I start noticing the same symptoms?
Attention changes what you notice.
Before hearing the story, you may not have been thinking about your swallowing, breathing, energy level, digestion, skin, vision or heartbeat. Once the symptom has been mentioned, your attention starts checking that particular process.
A sensation that would usually remain in the background becomes easier to detect.
You swallow to see whether it feels normal. Repeated swallowing creates tension or dryness. You check again because the sensation now feels different.
You monitor your breathing. Conscious breathing feels less automatic, which makes you wonder why it suddenly feels unusual.
You examine your skin under stronger light. Normal variation becomes more noticeable because you are looking with a specific threat in mind.
The sensation is real. The question is what the sensation means and why it has become so important at that particular moment.
The NHS identifies frequent body checking, repeated reassurance seeking, persistent health-information searches and avoidance of illness-related material as common features of health anxiety. It also notes that anxiety itself can create physical symptoms that may then be interpreted as signs of illness. Read the NHS guidance on health anxiety.
Why does one similarity outweigh all the differences?
An anxious mind is looking for evidence that the possibility requires action.
Suppose somebody describes tiredness before receiving a serious diagnosis. Tiredness is common and can have many explanations, but the illness story has given it a specific meaning.
Your mind may focus on the shared symptom while overlooking important differences:
- Their tiredness may have been persistent or accompanied by other clinical signs
- Their medical history may be different
- They may have had examination or test findings you do not have
- Your tiredness may have followed poor sleep, stress, illness or a demanding week
- A symptom occurring in two people does not establish the same cause
Health anxiety continues asking whether the similarity could be significant. As long as absolute certainty remains unavailable, another comparison feels necessary.
Why do I Google the illness even when I know it will make me feel worse?
Searching offers the possibility of a quick answer.
You hope to find a clear reason why the illness does not apply to you. Instead, you find broad symptom lists, unusual case reports and stories about diagnoses that were initially missed.
You may feel reassured when your experience does not match. Then you notice that one symptom can present differently, the condition can occur outside the usual age group or another person had very few warning signs.
The original question changes.
“What are the symptoms?” becomes “Can it happen without the usual symptoms?”
“Am I in the typical group?” becomes “Could I be an exception?”
The search provides brief relief or a sense of action. It also teaches your mind that hearing about illness requires investigation. The next story therefore triggers the urge to search more quickly.
This is explored further in Why Do I Keep Googling My Symptoms?
Why does reassurance help for such a short time?
You tell somebody what you heard and describe the symptom you have noticed.
They remind you that the symptom is common. They point out the differences between your circumstances and the person in the story. You may feel calmer for an hour or for the rest of the evening.
Then another thought appears.
“They don’t know for certain.”
“Perhaps I didn’t explain the sensation properly.”
“They are only saying that because they know I worry.”
“The person in the article was reassured at first as well.”
The reassurance answered one version of the question. Health anxiety produces a slightly different version that has not yet been answered.
Another person cannot provide the complete certainty your mind is requesting. The repeated attempt to obtain that certainty can gradually weaken trust in your own ability to make proportionate decisions.
You can read more about this pattern in Why Do I Need Constant Reassurance?
Why do stories about missed diagnoses affect me so strongly?
Stories about a missed or delayed diagnosis contain a particularly difficult message for somebody with health anxiety.
They suggest that reassurance can be wrong.
You may begin treating every reassuring explanation as the possible beginning of somebody else’s missed-diagnosis story. A normal test, routine examination or sensible medical opinion no longer closes the question because you can imagine an exception.
You search for what was overlooked in the other person’s case and compare it with your own appointments.
“Did my doctor ask that question?”
“Was that test included?”
“Did I mention every symptom?”
“Could it have been too early to detect?”
The story creates the belief that remaining vigilant is the safest response. You begin monitoring your health in an attempt to make sure nothing is missed.
The cost is that your attention rarely gets to leave the case.
If this is central to your health anxiety, read Why Do I Keep Thinking the Doctor Has Missed Something?
Why can avoiding every illness story make the response stronger?
Avoidance can provide immediate relief.
You turn off medical programmes, leave conversations, mute health-related words online or ask family members not to discuss illness around you. Your body settles once the information is gone.
That relief can teach your mind that the conversation was dangerous and that leaving protected you. The next illness story then feels more threatening because you have had fewer opportunities to discover that you can hear difficult information without turning it into a diagnosis of yourself.
This does not mean forcing yourself to consume distressing medical content. You are allowed to choose what you watch and discuss.
The relevant question is whether the choice reflects your preferences or whether anxiety has made ordinary health information feel impossible to tolerate.
What if someone I care about is genuinely ill?
Concern about somebody you love is not automatically health anxiety.
A genuine diagnosis can create fear, sadness, practical uncertainty and understandable thoughts about your own health. You may also need reliable information about hereditary risks or symptoms that should be discussed with a clinician.
The pattern becomes different when your attention repeatedly leaves the person’s actual situation and begins investigating whether you have the same illness, despite having no new clinical information.
You may feel guilty about this shift.
“I should be supporting them, yet I’m making it about me.”
The response does not mean you do not care. Their illness has activated your own fear, and the fear has created an urgent search for certainty.
Both experiences can exist at the same time. You can care about the person while recognising that your checking and searching require a different response.
How do I distinguish sensible medical action from health anxiety?
Sensible medical action helps you decide what to do.
You notice a new or concerning symptom, obtain appropriate advice and follow the recommended next step. The information moves you towards a proportionate decision.
Health-anxiety checking keeps reopening the decision after you already have enough information to act.
Consider:
- Has anything about my health actually changed?
- Am I responding to a symptom or to somebody else’s story?
- Have I already received appropriate advice?
- Will another search change what I need to do?
- Am I looking for useful information or complete certainty?
- Did this concern begin before or after hearing about the illness?
- How long did the previous reassurance last?
These questions are not intended to prove that you are medically well. They help establish whether your next action is likely to provide useful information or simply repeat the anxiety cycle.
What I notice in my clinical work
In my clinical work, people often describe an almost immediate transfer from somebody else’s story to their own body.
They might say:
“I was fine until she mentioned the symptom.”
“I had never noticed that area before.”
“I know their situation is completely different, but I can’t stop thinking about it.”
“I don’t want to Google it because I know what will happen, but I feel irresponsible if I don’t.”
The person usually understands the logic. They know that hearing about a condition has not caused them to develop it. They can identify all the ways their circumstances differ.
The automatic response continues because the information has already been marked as personally important. Their attention moves towards the body, the body produces more information and checking provides temporary relief.
This is why another logical explanation may not be enough. The pattern is being reinforced through attention, physical response and behaviour, not through a simple lack of knowledge.
How may hypnotherapy help when illness stories trigger health anxiety?
My approach begins with your specific sequence.
We look at which stories affect you most, how quickly you begin comparing, what you check, what you predict would happen if you did not investigate and which behaviour eventually provides relief.
One person may immediately Google the illness. Another checks the same part of their body repeatedly. Somebody else contacts their GP, asks a partner for reassurance or avoids seeing the person who is unwell.
Hypnotherapy may be used to work with the automatic connection between illness-related information, personal threat, body monitoring and the need for certainty.
The objective is not to make you dismiss health information. You remain able to notice genuine changes, obtain appropriate medical advice and support people who are unwell.
The useful change is being able to hear about an illness without automatically putting your own body on trial.
Focused work for people ready to move beyond the pattern
My Focused Hypnotherapy Programme is a fast, structured process involving one to four sessions.
Some clients find one or two sessions are all they need. I recommend the appropriate option after understanding the history, impact and exact sequence of the pattern.
Every client receives supporting audio and ongoing support from me.
Appointments are available online throughout the UK and in person at Cavendish Square, within London’s Harley Street medical district.
You can learn more about my clinical experience and approach or visit the general hypnotherapy FAQs.
When should I seek medical or psychological support?
New, unexplained, changing or concerning physical symptoms should receive appropriate medical assessment. Do not assume that every symptom is caused by anxiety.
Call 999 in an emergency or contact NHS 111 when you need urgent medical guidance.
Speak to your GP or self-refer to NHS Talking Therapies if health anxiety is significantly affecting your work, relationships, sleep or everyday life. The NHS identifies CBT and, in some circumstances, medication as established treatment options for health anxiety. Hypnotherapy does not replace necessary medical investigation or evidence-based mental-health care.
You can explore the broader Health Anxiety treatment page for more information about body checking, symptom searching, medical reassurance and fear that something has been missed.
Frequently asked questions
Can hearing about an illness make me feel its symptoms?
Hearing about an illness can direct your attention towards sensations associated with it. You may become more aware of ordinary physical activity, and anxiety can also create genuine sensations such as tension, nausea or a faster heartbeat. This does not establish that you have the illness. New or concerning symptoms should still receive appropriate medical advice.
Why do I worry about illnesses I had never considered before?
Illness-related information gives your mind a new possibility to monitor. If health anxiety is already present, the condition can become temporarily prominent and personally relevant, particularly when you recognise one familiar symptom.
Should I stop watching medical programmes and reading health stories?
You can choose what information you consume. Complete avoidance can reinforce the belief that illness-related information is dangerous, while compulsively consuming it can fuel checking and comparison. The aim is a proportionate choice rather than one controlled by anxiety.
Let the story remain somebody else’s story
You can hear difficult health information without immediately searching your own body for proof that it applies to you.
You can take genuine symptoms seriously, obtain appropriate medical advice and allow another person’s diagnosis to remain information rather than an instruction to investigate yourself.
Focused work is available online throughout the UK and privately at Cavendish Square, Harley Street, London.