Getting something different than what you paid for

Okay so im a heroin user, i score on the street in this towns local hotspot, which is usually safe enough if you keep your wits about you but today i had a new first.

Got down to the street, none of the usuals around, hrmph i figure the jacks (police) must have been through shortly before my arival. Anyways one guy is like "you chasing" now this is a street where if ur not selling heroin you tell people as people dont want other shit... Anyways i buy my two points which look like the usual small white hard rocks that are china white, get back in my car drive a few blocks and do up one of the baggies. IV that sucker like 1000 times before but this time as it comes on i sneeze six times in a row, then proceed to feel like im about to projectile vomit, that calms down and i begin to start profusely sweating as i drive away.

Fuck ive just been sold a stimulant clearly... Now this strikes me as strange, both meth and coke are worth more than two points of H plus we get crystal meth, base being nonexistent and coke costing 100s a gram. So that cant be it i figure, its not speed as i take dexamp every day and that much speed wouldnt feel like that.

Now im not asking people to play lets guess the substance ill go use my friends reagent tester for that... If i was to make an educated guess id say some sort of PV analog, apvp etc.

What i am trying to say is be careful and test your shit people, im a long time user of drugs and thought my knowledge would protect me but when dealing with inert white sunstances and shady people obviously this is untrue... (Usuallly people would just sell broken up otc pills as gear if they wanna rip u off and tbh id rather that had happen) i had of done up both bags as i usually would do i may not be posting this right now. Secondly fuck people who sell dangerous research chems with low dose thresholds to heroin users who you know are probably going to be IVing the drug. Mother fucker almost killed me to make fuck all money.