You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Persistent belief of medical illness despite adequate investigation is and explain in detail?
(A) Hypochondriasis > Hypochondriasis is a persistant preoccupation with fear or belief of having disease, based on persons own interpretation of normal body function or minor physical abnormality.> This preoccupation persists despite repeated reassurance based on appropriate clinical examination and thorough investigation.> The patient in question is persistently preoccupied about her disease (headache) despite of all normal investigations and seeks another consultation as she still insists that there is something wrong in her head.