I've spoken with a professional guitar player who said that he gets it in his fretting hand if he plays long gigs. I had no problems whatsoever, playing uke for a couple of years, pretty heavily then all of a sudden I started having pain in my arm just below my right elbow (my strumming arm). Over a months time it just got worse, to the point that I had to lay off. Pain was radiating from my elbow up to my shoulder and down to my hand. Checked web md, etc. consensus was that there was no definitive treatment. Rest, ice, topical cremes, cortisone shots, heat, braces, physical therapy exercises, surgery and more were suggested, articles said that no one treatment was clearly better than the others, results varied, and none were particularly successful. I tried rest, brace, heat, ice and topicals with absolutely no success. Even quitting playing for a month had almost no effect on my arm, so I started playing again. I've been back playing now for about 2 months and pain remains, some times worse than others but always there, even when I'm completely still. I'm continuing to search for info on this apparent tendinitis/golfers-tennis-ukulele elbow and hope I find something that works. I've read some promising articles on an exercise involving extending the tendon with resistance (provided by foam tube, kinda like pool float but smaller, think I saw them for about$10+ on Amazon or ebay). Gonna try that next, cuz quitting just ain't happening (especially since my month long hiatus yielded so little improvement). Anyone else been thru this?