What causes being strung out

[justtakethat]

Sometimes when you smoke heroin your pretty much good, but what i dont understand is when you smoke a dot you dont really feel it and yoy smoke another and another thinking your not feeling it and by the time your done your all dizzy and high as fuck, usually this is the only time ive thrown up off of it but i thinks its weird and was wondering if anyone had explanations.

 

[PotatoMan]

Sounds like you undershot then overshot your tolerance. High doses when intolerant causes the extreme histamine release or spins, nausea etc.
Low doses would have you feeling underwhelmed so you try again until you overshot and hit the high dose region.

That's just my $0.02

Homeless ----> BDD

 

[justtakethat]

^
That makes sense, thats probably what i did.