I think my friend is facing depression. Most of the time he is negative about his life, he feels he is unable to achieve much, he feels exhausted entire day (no energy) and also complains about continuous headache. He also faces continous fear of everything (like driving doing mistakes at workplace etc.) Earlier he was jovial, active person with full energy all time. He could run entire day on sleep with 4 hours and now he just like to sleep and still feels that he don't get enough sleep. Other symptoms are constant body pain specially close to heart. We have got the tests done and all are normal except he has high cholestrol level. Please suggest