Wet your pants. Every woman with MS is always wetting their pants...at least the few I knew. They knew where every bathroom was in every store in a fifty mile radius (it was a small town).
If there is one indicator of MS, it is bladder control in women. Besides you have tingling and burning pain..that's enough for me. You have classic MS symptoms. Now all you have to do is wait for an MRI to show damages and that might take a while. Then, when they do show damage, a spinal tap.
It seems that your neurologist is aggressive and that's good. Don't get rid of him. And keep smiling, these are your good days, enjoy them.