I know this sounds absolutely random and ridiculous but what I experienced was pretty profound so I thought I'd throw it out there. I've always been into working out which is why I'm on this site frequently but I admit I'm also something of a recreational drug user. I used to take shit like oxycontin and morphine until one time when I had been taking it pretty often and I went into the gym and felt like absolute shit and quit my workout without getting through even the first ten minutes.
At that point I knew it was starting to be a problem and I wised up and cut that shit out and haven't done it since. But when I was taking it there were a few times when I'd take it the day before a workout and then the next day even if I had only got like 6 hours of sleep I would literally have the best workout of my life. I would always feel stronger than ever and I would seriously fucking handle weights I wouldn't have been able to lift a week earlier.
For example I remember I was trying to up my seated overhead barbell press and one week (after having been doing this same exercise for a while) I hit about a 5 rep max with one weight. The next week after getting high on oxycontin the day before i hit 12 reps with the same weight without changing my training at all. This is just one example but there are plenty others. I've used creatine plenty and all that stuff and I can seriously say that none of that compares to the way I performed after taking these drugs.
A friend of mine tried it and he experienced something very similar so I don't think this is all just in my head. I thought I'd throw this out there to see if anyone else has ever done this (although I'd be surprised to find anyone on here besides me abusing shit like that) or just to see if anyone has any thoughts on this. But please just spare me a lecture about why I shouldn't be using drugs.