The search is trying to create certainty
When anxiety is involved, you are rarely looking for information alone. You are looking for the point where your mind can finally stop worrying. Every reassuring answer can generate another question.
The search itself can teach the brain that the sensation was important enough to investigate. Relief then reinforces the urge to search next time.
What needs to change
The aim is not to ignore medical concerns. It is to recognise when a reasonable check has turned into an attempt to remove every uncertainty.
The Anxiety Hub contains detailed articles about reassurance, body checking and specific symptom fears.