Alright so I made a gravity bong a while ago, and i haven't changed the bottle i use in quite a while so that could be the problem, but hear me out...
I used to only do like 1/4 of the bowl and i'd be fucked up from it. so the other day I realized I can do half and still be decent, not completely fucked up, so I packed a full bowl.
After I hit it, I felt a burning feeling, is that cause of the bong or was it the old plastic or something? I have never used a glass bong before so im kinda scared to pack a huge bowl and experience that again. I laid down and I was tripping out, it was like I smoked laced weed or something ( I know the stuff i smoked wasn't laced).
So what do you think caused this crazy mindstate and insane throat and chest burning?