I have gone through grams of aMT. Once I did 600mg in 5 days, though you need only one dose per day, I was doing about 110-120mg bombs every morning. The biggest mistake I made probably was, that I got only 4-5 hours sleep every night.
6th day: I was feeling a little bit confused, but could not keep dosing. Nothing unbearable though, but towards the night I could not talk to people anymore, I mean, I was just getting so tired, body wanted to rest.
7th day: I was puking for the whole day. Nothing went in, even water came out. I had a huge motion sickness, I felt okay only when I was laying down and closed my eyes for at least, say, half an hour. Both moving and light triggered my motion sickness, so I could not even watch the TV or keep my eyes opened. I could barely use mobile for more than 5 min, because then I got sick again. I was laying down the whole day, did not eat or drink anything (well I tried, but everything came out instantly). Wouldn't want it even to my enemy,..well, on the second thought...
8th day: I was still sick, motion sickness was still bad, but I could eat and drink now. That gave me an ability to give my body a chance to recover. So I drank and ate as much as I could handle (which wasn't very much, though), just to give my body some necessary vitamins and other supplements. I still kept my eyes closed and tried to sleep. I could now play with my mobile for even as long as 15 min. But oh was I feeling bad...
9th day: Quite okay now. Can walk around, eat, drink, nothing very noticeable.
I still cannot understand where this massive tolerance came from. The first day I was feeling oh, so good. Next day I was feeling still good. For three sequential days I was feeling good, when I was laying on the bed and listening to music, doing faces on my own etc, but talking wasn't as enojoyable anymore. 100mg was like nothing I couldn't handle. Actually, I could handle myself even the first day after 100mg. My friends still enjoyed the stuff and they had done it very many times before also, so it wasn't about the stuff. It was rather about the lack of sleeping and something else... something had to change its effects/mechanism/activity/whatever...
Usually 100mg makes me feel like I would be in paradise. About 2 months before that week I had once tried a bomb containing as much as 175-200mg aMT. I was laughing the whole night with my friend, who had the same sized bomb. We were laughing for like 15 hours like crazy, then for another 3 hours we were tripping like with 60mg or so and then we went to sleep.
What I also wanted to say is, that it seems as if I have developed a medium serotonin syndrome. Not instantly after the week, I do aMT occasionally. Body temperature gets higher in the evenings (37.3C/99.14F or so), then I start feeling good (but hot), like I would have taken about 30mg aMT, then I enjoy myself, I often get euphoria similiar to that empathogen (talkactive, laughing, enjoy doing faces). I also get mild hallucinations (in dark I see noise, flashes, sometimes patterns, lights, little morphed figures, in light I see sometimes some patterns, light waves, changed colors, mostly something turning to pinkish red, sometimes I see floating-sparkling light dots in front of me, very rarely though, but they look very cool, only a fairy is lacking). It may sound good to some people, but who knows where it can lead. Right now it, fortunately, is not disturbing my life. I do not see very realistic hallucinations, or only in the corner of my eye for a second, sometimes, and I can sleep very well, I don't get downs from highs (except I feel a little nauseous every morning, for 10-15 min, then I'm happy again).
But I am doing aMT only like once every 1-2 months, that was just a week of trial I couldn't resist, like with most of the drugs, just to see what happens.