--did you have your back surgeries?

I ask because it seems to me premature to dismiss your back/spinal issues from contributing to your neurological symptoms; really extensive imaging and nerve conduction studies might be called for, as problems with the peripheral nerves can produce symptoms that can be exactly mimicked by problems with the spinal cord or the nerve roots exiting from them. The distinction is basically "how far up" (meaning how close to the central nervous system) the problem lies, and this is not always easy to determine.