Re: Nothing is working anymore
Did you by any chance clean up the bowl right before your session? In that case your bowl might still be wet even though you tried drying it out. Also that would explain why your smoke is harsh since your tobacco is not burning and is wet from the water residue on your bowl. I made that mistake when I was a noobie smoker so, this might be the case here.
Make sure that you clean your hookah right after your session that way everything is dry when you set it up later.
Let me know exactly what you do when you setup the hookah, and I mean every little detail, because there is definitely something wrong with the way you're setting up your hookah. When it was pulling like a beast and then all of a sudden it doesn't, usually thats a user error unless there is physical damage to the hookah or you lost the ball bearing or something.