Dear Doctor, its 5 am in the morning I am writing to you. I am an engineering student, Age 26, Unmarried, No record of mental illness or any other health issues in the past. Doctor, from last one week I am facing some difficulties in my thoughts. I just keep thinking myself in a hypothetical situation about anything or everything that is never gonna happen at all. It happens even when I am with my friends or in class or during dinner or while working, I don?t think I have situation where I don?t get these thoughts. I tried to keep myself busy but they (thoughts) are still with me. Initially I thought it was due to lack of sleep, but very soon I got that I keep thinking even in the sleep too, means in last week I never got a deep sleep like before. Doctor, I am not a continuous smoker but I smoke. Before yesterday, last time I smoked was 2 months back and I don?t have thought about tea, coffee, drinks (alcohol) or any other drugs. What actually made me panic is yesterday after noon I had a tea and smoked a cigarette. After that my mind is functioning well. I got a good sleep of 4 hours and as of now no issue of thoughts. 15 days back went to meet my parents (after 14 months). Where my mom used to give me the tea every day (2 times a day for 8 days), (I am telling it because I don?t have habit of tea or coffee and usually when I have a tea or coffee it?s difficult for me to sleep but in my home it was normal, even after having tea for 2 times my sleep was good and I don?t have a clue why) So doctor tell me now, What actually happening to me? Am I addicted tea in that short time? Or something wrong with my mind? I need to have this tea? Or smoke? (doctor I don?t want to be a slave of tea or smoke)