Welcome to TIMS though I'm sorry you find yourself here. It's important to note that MS presents in so many different ways. For me, it was the pain in my right foot that first sent me to seek medical help in 2004. The pain was a burning, pins & needles type feeling but with numbness on the surface. I was mis-diagnosed with Peripheral Neuropathy and it didn't seem there was any cure or viable treatment so I accepted it and went on with life. Then in January of this year, I lost about half of my vision (quite literally). It was at that time that I was diagnosed with MS. Reading your post, I can totally relate to the fear you're going through, I felt it too. My neurologist assured me that the myelin sheath surrounding my optical nerve would heal and I would see clearly again, his words did absolutely nothing to ease my fears but, turns out, he was right.
Hmmm, I guess the point I'm trying to make is that even if you do have MS, it's not the end of the world. I'm just now starting to realize this. Here's an analogy that makes sense for me. You know that feeling (from when you were a kid), you're riding your bike along, having a blast, then you crash. You're stunned, you know you're hurt and you assume the worst, then slowly you start examining yourself and realize you're okay, maybe a skinned knee or sprained ankle but you're okay, you get up and low and behold, you can still walk, you're okay.
That's where I'm at now, my bike wreck was my loss of vision and diagnosis in January and I'm just now starting to realize that I'm okay, maybe limping a bit but okay. I don't quite know why I felt compelled to share all this. What you have may not be MS at all but just know that even if it is, you'll be okay.
Wishing you the best, Kara