I have the same problem right now. I'd been smoking this very good bud and the guy I bought from didn't have any so I went to another guy that has good stuff that i've smoked before and it is KILLING my lungs right now. I'm hacking up stuff, it hurts to cough, and after I smoked last night I felt cold as hell and began to shake and tense up and I felt like crap this morning. I thought it might be because I caught some bug from someone I smoked with but they are all healthy right now.