Kelly I have all sorts of abnormal sensations in my left leg, which are now normal for me.

But, I haven't experienced what you are experiencing.
I know a guy with MS that when he presses the brake in the car he loses control of his bladder.

I also know of someone who doesn't have MS that gets something similar when she sits up straight and turns her head. She also gets very dizzy when she does this. It's only when she is sitting up, not leaning back, laying down, or standing. Really bizarre. And, she had a normal MRI. Go figure.
You are like me in that I won't do steroids unless I lose my vision. That would be the only time. I react horribly to steroids and to me it is just not worth it. Steroids are for the inflammation, not the symptoms.
Hope you start doing better and it clears up soon!