I am four weeks into my cycle and have been taking 1cc of enantat 250 once per week. I was injecting into my delt and they have been more painful than expected so I switched to my glute. It has been 4 days since my injection and the pain in my glute is almost unbearable. I can barely flex it or stretch. There is definitely swelling of the muscle but its a burning pain. I have also been getting slight fevers and flu symptoms throughout the week. Can my body be rejecting this stuff? I am posotive I took all the right sterile procedures. There have been gains but not as profound as my last cycle. What should my next step be?