First, find a great orthopedist. I have one and it has made a world of difference for me. You certainly do NOT need surgery if you just have bursitis. A well placed shot of cortisone and physical therapy will do the trick. The trick is to find a great doc. Mine works on the Portland Ballet troupe and a few sports teams. His shots are painless! I can't say the same for other ninnies I have seen. Good luck, do your pt and find an orthopedist that isn't a surgeon!
Actually, you might need surgery. I had to have surgery for bursitis for my shoulder and I am only 16.