I hurt the lower-right portion of my back moving into a new apartment. I am puzzled because the pain is not persistent, in fact it stopped hurting morning after accident. However, it pops up now and then, like once when I was playing pool I yelped with pain as it felt like the accident just occurred for the first time. A similar incident occurred when I was playing tennis. I can sort of feel it in the gym when I am doing squats and exercises that are hard on the lower back, and usually cut my set short when this happens.
Can anyone help me? Should I just keep an eye on it, go to a doctor, or stay out of the gym?