I had a bad trip like that last night. I just got back inside my house from hittin a nice joint with my bro. I satdown for a minute and it just hit me. My stomach felt like it was turnin, my eyes were fucked and I had a bit of a twich. Gettin paranoid happens. I don't know of a way to get rid of that. All I did was take a drink of water and chill. Sometimes it helps to splash some water on ur face. I goes away in like ten minutes for me. It also may help if u make urself somethin to eat or do somethin to take ur mind off ur bad trip.

Cronton83