I have been having a severe lack of sleep for the past 3 years. The job that I'am currently at now requires me to constantly work shifts that can range from 10 to 14 hrs or 22 to 30 hrs. In the beginning of this job (3 yrs ago) I had no problem staying awake for 2 to 3 days at a time. I would just drink 3 to 5 pots of coffee a day. As the shifts got longer I pushed myself even more and I went on a routine of staying awake for 6 days, sleep for 4 hrs and repeat the process. I figured that im still young so I can push myself beyond my limits and still function. It seems though that as the years go by using this routine the effects on the mind increase considerably. I have gotten to the point now when I reach my 3rd day I get very short tempered. All it takes is the smallest thing to make me react in ways I've never reacted before. I will get this rush of adrenaline flowing through me and I turn psycotic. By my 4th day I start to see things that I know arent there. By my 6th day im a wreck, normal everyday activities cant be performed because I feel as if Im on the edge of becoming enraged. I'am in the process of getting a different job because I fear that the next time I lose control could be the last.