Alright people.I had a issue with a shot last night.I was having a ml test 400 ml tren.I heard of tren cough before so when it happend it wernt a shock.ive ran tren a few times without the problem.but I gt a ml in then went light headed bright red then I thought fuck whack it in before you cough ur bollocks off and stab my delt to shit.so I got it in then bang.the worst unexplainable cough.fort I was gonna faint lol coughed all my weiling fumes up and the misses shit herself but gt told to piss off so I could die in piece lol.but the question is does it happen nickin a vain blood vessel.I aspirated but you still move with the needle.I heard it happens just putting it in to fast but I think its got to be the bloodstream.thanks for your help lads