Some of the symptoms you describe seem to indicate a trip to a free doctor might be worthwhile.

Before you go, take a look at this webpage. Print the page and mark exactly where you feel the pain and log the conditions under which you feel the pain.

Maybe I'm not the best person to talk to about these things because I don't have any chronic pains. Maybe I am the best person to talk to because I manage to avoid them. Who knows? If this were me, I'd rest until the pain was gone and start over. It would probably only take a couple weeks unless you have badly messed up something.