I've been through this before, but I just needed to check.
Injection in right delt was 6 days ago. The delt was a tiny bit sore for a few days which is normal. On 5 it began to swell up. It's not extremely sore, but it's tender to the touch. The skin is not hot or red.
At time of injection the needle moved around alot as I fought to control it at a weird angle.
Is it possible I bruised the muscle? It doesn't fit the classic infection signs yet.