I too had these symptoms
since Jan 2011. We found out it was because of mold in our home
we had moved into two years prior. I did have demyelinating lesions on my brain after a MRI imaging scan. But was not diagnoised with MS. I had painful respiration, GI upsets, tingling numbness, balance problems that persist, electric shocks down my spine, my pupils were two different sizes,cognitive decline, etc. Stachybotrys and a few other molds produce mycotoxins that can cause demyelination.