Hello Dear. It is really difficult to make any diagnosis by all these vague complaints what you are telling. We need to take a thorough history, examine you and then only can arrive at a provisional diagnosis. Just by your history i feel its psychosomatic disease. You need to consult a physician who will rule out any organic cause of your drowsiness by examining you and doing CT scan if required. If everything is normal the physician may give you some anti-depressant tablets. Also take opinion of clinical psychologist and give you counselling. Some of the tips to follow- 1. Do regular exercise 2. Socialize with people, family and friends 3. Develop some good hobbies- music, sports, reading books 4. Keep yourself busy. An idle mind is devils workshop. 5. Learn meditation techniques. Hope i have answered your question. Feel free to contact me if you have any more questions. I ll be glad to help you. All the best With warm regards Dr Sanjay Kini