I spot injected test in my left bicep first time on Monday (2 days ago) and it seems puffy and swollen and can't see my veins anymore even part of my forearm is puffy and some but very little redness. I couldn't extend my arm all the way or flex or bring my arm up all the way as if I was going to flex without it hurting bad. Today I can extend and move my arm a lot better. This happened to me in the past with first time injections on quad shoulder and glute but I just want to know forsure and what should I do if I do have an infection...thanks