Swelling, tenderness, constant pain, and small hump on the back of my lower neck.

For several years now I have been in constant pain. The back of my lower neck is always very tender and warm to the touch. I also have a small "buffalo's hump" which is always sore. I'm 19 years old and I have had bad posture in the past, but for the past few years, I have improved my posture with stretching. I've asked my primary physician, and she keeps telling me it's my posture, but after two years of working on it, I've seen no relief. I've even seen a chiropractor. but nothing helped. I'm only slightly overweight, nothing major, and I have a DD cup size, but I'm not sure if either of those could be factors. I've heard of a buffalo hump being related to Cushing's, but I'm not sure of all the symptoms and I don't want to jump to conclusions. I did find a picture of a buffalo hump on a Cushing's patient that resembled mine: http://4.bp.blogspot.com/_8Dln2xkR7y8/SEtY_A6y3xI/AAAAAAAAANU/oauxSwEiiMs/s400/04-15-07+buffalo+hump+1.jpg


I hope to hear from someone! I've tried everything and the pain won't go away, so anything at all would help!
Thanks to anyone who can help,
Jasmine