hey stickler, I had tren and test (seperate sots different cycles) give it to me in the quads, same pins size same place. I puked from the tren, the test lasted maybe a 1 or 2 nothing intense. The tren was 1 ml and the tst was probably 2. I had it happen in the pecs wtih eq and tren once again different times same pin size even the same pec, and once agin the eq was easy to brush off. The tren last for a while only subsiding after appying a frozen bag of veggies to my chest. Both of those were 1 ml each. I definetly agree that it is entering the bloodstream and traveling to the lungs. I always thought it was caused by the constriction of the bloodvessels in that area, hence the tightening feeling. I'm not as up to date on this stuff as I used to be, but would oil even be able to pass thru the capiliaries? I mean we are working with very very tiny pores here, and well oil is a larger molecule, and they don't like to leave each other in an aqueous enviroment. But on the other hand, maybe the frequency in which this happens ( realatively rare % when you think about how many sticks you do per year) maybe it makes sense. I know I don't get the cough evey time I see blood follow the syringe out. perhaps we are close to this more often than we think, and only in a rare case in which the oil does not aggregate together in numbers and is then small enough to slide thru the capilary walls? Who knows. All I know is it isn't fun.