Been on my first cycle of testc 200 only at about 500mg a week, one shot every 3-3 1/2 days. Been alternating quads and for some reason today, which was my 6th shot, i went about 1/8" into my right quad and immediately got a stabbing pain. Took it out and changed needles and went into my left quad and had no issues and it injected fine, but now it feels like my right leg was the one that got pinned. Anyone else had anything like this? Is this unusual?