Hi Kelly,
I know you were asking Cherie,but figured since I knew, I'd help you out with at least one of your questions. C spine is the cervical spine ( neck) only. Then there's the thoracic spine ( mid-back) and lumbar spine ( lower back). I hope your symptoms let up soon and you're feeling better quickly.
I don't think you're over -reacting, this MS stuff just completely sucks and we wouldn't be "normal" if it didn't get us concerned/anxious, what have you at times.