Last night I took a hit of meth. A couple hits. I don t use regularly and after a little while I had the worst headache I ve ever had. It didn t build up or anything, just hit me. The back of my neck hurt bad to and I threw up very violently multiple times over about 6 hours. The weird thing was that I kept passing out and waking up and puking. I shouldn t have been able to fall asleep at all 3 hours after doing the meth. And the headache stayed all night and it was a throbbing worst headache ever. I sweat profusely thru it all also. Today my head is tingly and my neck is sore. I can t see that great either. Or think. I ve only done meth once in the last 7 months. What should I do?