Hello and welcome to Healthcare Magic. Thanks for your query.
I understand that you are going through a stressful time because of your negative thinking pattern and your excessive fears / anxiety
about having a major health problem. Your symptoms seem to be indicative of an anxiety disorder. You do need to consult a psychiatrist
for a detailed psychological assessment and further treatment. There are effective treatment options - in the form of medication or counselling
which will help you overcome these fears and negative thoughts.
Dr. Sheeba Stephen