No fever but feel warm and achy

I am waiting for gallbladder surgery and also waiting for a doctors appointment on Thursday. I have been feeling feverish/hot for the last couple of days with mild gall stones symptoms (back pain, chest pain).

I don’t seem to have a fever but I am achy, feel warm, feverish. I did COVID test just in case. No covid. But I am not sure what warrants an emergency visit? The back and chest pain have subsided.