It seems to be hypochondriasis. It can be well treated with counseling sessions and homeopathic medicine effectively.

Hi Consult a psychologist and explain about your thoughts. It is necessary to make a note of negative thoughts and triggers. I understand it can be stressful when the mind is constantly filled with negative thoughts. To feel better consult a psychologist. A psychologist will help you feel positive and calm. Do not worry with counseling sessions you will feel better.

You definetly require  cognitive behavior therapy and behavior modification to convert negative to positive statement.start jouranling your thoughts .connect wuth me fir more help.

Hi Remember your achievements so far, remember people who are happy with you, like your presence Look outwardly,  see and experience surrounding in constructive ways