ive been on 3iu's a day for about 2.5 months now. i was training back last tuesday and after my arm was extremly sore. i had felt like i damaged something badly. i couldnt lift my arm in any direction without extreme pain. i feared the worst thinking that i just started my cycle and now im injured. the following day i went to the gym to explore what i could and could not handle. i was able to train most parts ligtly but anything back related was out of the question, i couldnt even row like 35 friggin lbs thats how bad it was. so i rested pretty good and it started to feel better after about 5 days, yesterday i did chest and today was back day. i went into today feeling scared to train back but everything worked out really good, no problems at all. now i dont know if this is because of hgh but i will tell you that the injury i sustained was more than just a muscle pull. and the fact that i was able to train back this quick i woudnt doubt that hgh had something to do with it. just my thoughts