Worried about a kinky spine.

[TxScarlet15]

I had my kingsnake Scarlet Rose out today and I realized that not only does it seem as though she has gained weight but her spine seems abnormally kinky. She has always had problems with her spine, at least that's what I assume it is, although it's mostly been in her tail, the vertebrae are looking pretty bent and out of shape. But now I've noticed she has a couple places about halfway down her body that appear to be bent as well. As far as her weight goes, I'm not sure if it's my imagination or not but she appears to be a lot fuller, perhaps too much so, than a couple months ago. She hasn't been overfed because she has only eaten about five times I think since the start of the year. She's being really stubborn and has been refusing meals which doesn't worry me too much, but the possible weight gain and crooked spine is starting to get me a little paranoid. Does anybody have any suggestions as what might be wrong? I'm considering taking her to a vet except that I don't know of any in my area and I'm not sure if it's needed at this time. Am I being overly cautious?