Wow that sounRAB scary. Have you been to a doctor to get an MRI? If not, I would start with your primary care and have them either order an MRI or refer you to a spine specialist to get a firm diagnosis. It sounRAB like some kind of nerve problem in which you should see a neurologist/neurosurgeon to make sure it isn't something radiating down your spine, but not a spine problem at all. Scary. Get checked out and let us know. I would not put this off, but, if you have seen someone, what did they say?
Hope you feel better and god bless!
Sincerely,
Lisa