Hi i have done numerous cycles over the past 3 years my last cycle i injected into the delt and soon after it swole up and was extremely sore could not move my arm..i stuck it out with the help of pain killers and anti inflamatory medication..was most likely infected..anyway ever since have had a noticeable lump under the skin its not sore or anything but i just wonder what it is and if i am ok to inject for my next cycle?? any ideas?? this was nearly a year ago now..