I have an (ex) friend who started with meth and I think I've figured out his mood patterns. Meth use usually at least once a week. During this time: Doesn't sleep or eat. very annoying and abnormal fast talking, doesn't breathe right, sweats, and hyperactive. Day 2: still high or on a plateau. This is usually the most pleasant (if u could call it that) day. Day 3: plateau, or starting to come down and become unpleasant. usually the start of him shifting into psycho mode. Day 4: coming down. mean, violent and unpredictable. Day 5: still violent and unpredictable. Day 6: the same or starting to return to normal. Day 7:back to normal. Next week, repeated, and repeated. Occasionally skips a week and is normal. Needless to say, I avoid this psycho now. Who wants friends like this? Can anyone here relate??? EDIT, ok rephrased. The moral is: Never have a friend that does meth, or any drugs. This is a pattern of one psycho meth ex friend. Can't be around these people.