I have been putting 2 shots of sus in my delts for five weeks. There has always been alittle pain but nothing that i can't handle. But yesterday I took my tenth one and last night I woke up with the worst pain every. I can hardly move my arm. does anyone know why this one hurts so much and how can i stop the pain. Another thing can you get great gains off of 500-750mg of sust for 14 weeks.