so i've been doing a bit more opiates than usual, maybe three times in the past two weeks and i started out by doing two bags the first night at the beginning and was nodding hard, then the last one in the morning, still nodded off. that was two weeks ago. then maybe like almost a week ago i got 4 bags and did 2 2/3 of the bags and browned out eventually, super fucked up. then yesterday i got two bags and did one, felt pretty mellowed out, go home an hour later, did about an inch long line and then started to get more itches and somewhat of a nod, slightly less though until i went to smoke some piff with my friend and then nodded out harder later. i know for a fact that the first dope i got two weeks ago was good, the second time even better, and now im wondering if my tolerance has gone up, which no doubt it has but i was also thinking the potency of the shit yesterday was lesser because the second bag broke out to a big line and i blew it all but didn't get the desired effect really. so i'm sure it is tolerance AND potency that affected these but i have to wait until next week to do some anyway as i have probation in a week and have to test negative, so that'll do a bit of curbing on the tolerance, hopefully it is good next time. for reference, the last batch was dirt devil in black on white bag.
i'm not so sure your tolerance went up so much .. if you kept this up for like a month or so then it will start going up .. it's impossible to measure with dope because as you stated, the potency plays a huge role because the bags are never the same! .. If you were blowing pills then thats another story..