i have a sore to the touch right shoulder AC joint--no trauma that can remember; also pain in mid back; only thing i did out of ordinary is i carried by 5 year old on my back at on a disney vacation month ago-week before Christmas (Pain starter New years eve); pain goes away laying down; the pain is in mid back sore not stabbing and right arm hurts a bit when raised over head; no numbness or weekeness; 47 year old 195lbs ; history of mid back pain twice--in 2001 and 2005--images clear---difference this time is AC in shoulder also hurt---high uric acid if that matters; any ideas?