aching wrists and elbows

Recently I've had aching wrists and elbows and I'm not sure why. I don't do anything strenuous or anything with them. It's sort of just a dull ache and a sort of shooting throbbing comes and goes sometimes. I Don't notice any numbness or anything but I feel the need to rotate my wrists just to try and get rid of the feeling and can feel my wrists click when I do it. I can't get to my doctor for about a week so any ideas? I'm only 20 btw, no medical conditions I'm aware off, overweight for my height since having my daughter. I can sometimes get it in my legs too but I put that down to being overweight and I'm working on that