Hi onenesss, sorry to hear you have had a couple bad experiences with the green, but in the 35 years of partaking in the practice of MJ smoking i have heard this a couple times. The first time i became aware that MJ is not meant for everyone was probly about 1980 or so and me and some friends where hanging out and having a few beers. One of my friends older brother was always the one that was the party pooper and never drank, or smoked with us.. well this one night he decided to have a couple hits from some Acapulco gold i had scored. and within 10 minutes he started having convulsion and nausea, so we took him straight to the hospital.. only to be told by the dr that there are indeed people who have just the right,,or wrong

chemical make-up that cannot metabolize THC like everyone else.
I am also thinking possibly that the smoke might not have been flushed proper, and your the one in a million that is sensitive to said chemicals. No offense, just an out loud thought

I notice that when i am hitting the concentrates a bit heavy that i also develop muscle cramps, at first i thought i was not purging my oil good enough, but i got my hands on some headband earwax from a clinic, and it did the same thing to me.. and i can smoke blunts like no ones buisiness and it not effect me the same way?? weird stuff huh? so i guess what it took me this long to say is, everyone is different in the way that canabis effects us.
I hope you figure it out, so you can get good benefits from it. good luck peace :smokebuds: