Hi there Kris,
there are times where women in particular become osteopenic (softening of the bone sin the spine) & therefor get OA of the spine at an early age.
this can be from diet, steroids, injury, and vitamin/mineral deficiency.
are you with a rheumatologist?
it's not too late to start to take a calcium supplement with vitamin D and a Rx for something like actonel for OA of the spine.
i do think you should have some serious work ups and MRIs and tests just to make sure nthing else is causing this.
a rheumatologist would be your best bet....and even a second and third opinion too!
take it easy & don't stress too much.
it's better just to make sure you get all bases covered...peace of mind is important.
the best to you!
erin