Had a shot on friday. The injection went great, no pain but the next day the pain and swelling started and its got to a point where it is unbearable. I could not sleep tidy last night, any movements causes major discomfort, even hurts bad without moving. I cant even sit down because of the pain and swelling. I know i have reacted bad to every shot besides the first one the whole cycle but never like this. Do i need to go to the a+e or stick it out and see what happens.