Boiler,
I am 53, but was 19 once upon a time! It sounds like you are very active.

I had some early symptons when I was young and active in sports. I didn't know anything about MS. I just kept on going and wondered if all the other kids lost their balance while going down the bleacher steps...or why I felt like the more I lifted weights the weaker I got instead of stronger...and so on... and so on!

I am sorry, I don't know the answer for you. But, I pray that you find out before you are in your late 40s like I did.

I will keep you in my thoughts!