I have recently started injecting testosterone. Two days ago I did it for the second time and I am having excruciating pain in my left buttox. The whole left side is extremely hard and is getting progressively worse. There is no redness of the skin, but the muscle is cramping to the point where I can hardly even sit down because of the tenderness.
Is there anything that I can do? Does anyone know why this could have occured, and what to do to prevent it in the future? And would this have happened if I had an air bubble in the injection.