Hello! I'm 17 and have avascular necrosis of the humeral head in my left shoulder. my doctor has told me that I should wait as long as possible to get a shoulder replacement because the sooner I do, the sooner I will loose function of my shoulder. But now I'm having pain in my right arm and it actually hurts worse. some think that it's compensation pain but it's been hurting for about 2 months now and x-rays have shown nothing. I was wonder if anyone had any advice or opinions on either of these things. should I be worried about my right arm now too and get an mri or just leave it alone? and should I get a shoulder replacement surgery for my left shoulder even tho I'm only 17???