Hmm I can write for hours on the subject of Meth. But to keep it simple, I have used it a total of 7-11 times? All on seperate occassions etc, and one thing I will tell you, is that out of all the drugs I have tried which includes almost the all the main ones, meth was always the worst. I never had a "comedown" or a "crash" until I had tried meth, when it wears off the depression and anxiety drive me soooooooooo crazy that I just became so disgusted with the drug. I won't even bother mentioning the once amazing people who turned into mean aggressive people when they had become addicted to it.
I couldn't even imagine doing it daily for a week, because that depression is so intense, a few old friends of mine who had used heavily for a few years have said that some of their withdrawals took a year or sometimes even longer to start going away and some things never changed. People will tell you always that meth (amphetamines) are very minor compared to benzos, alcohol, and heroin to which some degree is true. However don't be fooled thinking meth cannot cause physical damage and real bad mental damage a lot faster, than some other drugs.