So I’ve been doing Im injections for a little over a year now and have never had any issues, I’ve tried to be as clean and sterile as possible. I injected my thigh as usual but After a couple days it became swollen and has cause a decent deal of pain. Hurts to walk etc. it doesn’t seem to be getting better or worse just kind of staying swollen and hurting. I figured it would go away but now over a week later and it’s still swollen and hurting. Is this somewhat common or should I be concerned. No discoloration or fever or anything like that, just painful and swollen. My friend said this has happened to him before and it just went away after a few days but that doesn’t seem to be the case for me. Any input would be great!