I had started a test prop cycle doing test prop injections of 100mg EOD. The first 3 weeks went great... mild pain, but nothing major. I saw strength gains and results in the first two weeks.
However during the 4th week I shot my right ventroglute on Friday and it felt fine after the injection, but 6 hours later it was severely hurting. I could barely walk. On Sunday I shot my left side and it was fine... no pain, ever. I was still recovering from the pain on my right side from Friday. On Tuesday I decided to shoot my left side again, since I had just recovered from the painful injection. It seemed to go fine.
Six hours later my left side swelled up huge and there was severe pain. I could barely walk, stand, or move. It hurt so bad. This swelling and pain still remains, today it's feeling better, but the recovery has been slow.
Why would I get this severe pain one month into my cycle? It was the same gear from the same 20 mL amp. What causes this pain? If I switch to Test Cyp for my next cycle will I have the same type of pain?