Hey there, so I used to be big on stimulants especially adderall taking up to 80mg or more quite often mainly ER and being able to sleep easy peasy. I havent done it in about 2 and a half years and I had taken 40MG IR at 11 AM yesterday. I felt completely drained at around 11PM went to sleep and woke up at 2AM antsy fully energized and not able to sleep. Currently still feeling the same. I dont recall me being like this back when I was a heavy user, then again. I dont remember much back then anyways. Is this normal for a medium IR dose for someone with no tolerance to any stimulants at all? I must say though, I have got a lot done haha.