Hello Ambesh, There is a need to understand your problem better before proceeding to an answer. It is important to know what has led you to this belief, whether there are any high risk factors like obesity, family history of diabetes, borderline sugar levels etc. Even if that is true, you must look to correct the modifiable risk factors. There is a disorder called as Hypochondriasis, which is an irrational fear of contracting a disease. Your description does suggest the same. Hence my suggestion for you is to please seek a consultation with a psychiatrist for comprehensive assessment and further management. Hope this helps you. Best wishes for your health and future.