After my injection on Thursday, I injected it properly using alcohol swipes to keep the site .etc clean, I've noticed that my glute hurts very bad like could barely walk or move and the pain also went to my lower back, the area is warm to touch and feels a bit more firm when touched but I don't feel any lumps. I've also had a fever since yesterday so now I'm starting to get worried. This morning the pain is much better but I still have the fever. Any advice would be appreciated.