question about puking with crack

[Kingt12]

Im new here n well not sure if this is the right thread, please move if not anyways ill keep it short, ive been using crack bout a year now of course wit long breaks in between but wen i first started i was smokin off foil nd i would puke due to low tolerance like wit any drug really but then tolerance got higher nd didn't puke anymore..now my tolerance is high n just started to use a pipe rather then foil nd wen i use foil no problems at all but wit the pipe now every decent hit i hold in i puke like even my first hit i puke but can take a bigger hit n hold it in twice as long eit foil nd wont puke? Why is this

 

[pill_billy]

make sure u preburn the foil if you dont already... that shit is loaded with chems and will change the way everything tastes...

but yea ive only hit the rocks legit 3 times and every time, no matter what i would be callin dinosaurs after every hit i took... anyways i have no idea why this happens but i def didnt enjoy it... def rather go downtown anyday of the week

 

[T. Calderone]

I had a friend who always needed to spit after the first big hit, but never knew anyone who had to vomit. (only iv coke users)

 

[TheRapperGoneBad]

Was Bouta say iv coke makes me yakk on the regular.