You know what's annoying about that whole sometimes crazy thing is that the meth high has a ceiling. There is a point where you can't get any higher no matter how much more you ingest. It sticks out like a sore thumb and is very obvious. Can't miss it. What happens is you start losing your mind into a deeper and deeper state of psychosis, and then comes tremors, and if you persist, and if course I will, you eventually push yourself right over the threshold into a full on seizure. In my case the seizure also caused a strange patchy memory loss. Like it distorted the order in which I did things for the prior 48 hours.
I have an addict mind though with that stuff. If 1 is good then 2 is better and 3 is never enough.