My question is that I usually stay away from UGL's but I ran out of some Test E I was using then my boy hooked me up with a bottle of Test Cyp from a UGL that he uses. I shot 1 CC into my shoulder in it hurt really bad the day after and it is just now starting to get better 4 days later. Does anyone know what causes this? My shoulder is felling alot better now. Any info would be very helpful. Also after I took it the shit made me sweat my ass off. Thanks