Is hypermobility the same or diff from double-jointed and loose ligaments?

I once was sent to a rheumatologist to be checked out, after I had a lot of cervical disk and joint issues (and post surgery), tendonitus (called that) and TOS. The rheum. asked me to raise both arms overhead and when I refused, saying that it would cause a big TOS flare, he decided that I had bursitus in both shoulders and needed a cortisone shot in each one immediately. I refused repeatedly and was finally able to leave his office, promising him that I would return but of course I never did. I didn't realize that a rheumotologist would be a good doctor to help those of us w/TOS and Hypermobility.

This opens up a whole new ball of wax, connecting terms I've been labeled correctly or not: cervical disc and joint disease, tendonitus..., fibromyalsia, RSIs, TOS, and of course hypermobility (that one self diax-but scoring 5/9 on the beighton score). Am I secretly adopted? I am the only one in my family with any of this stuff.