Hi Barbara,

Sometimes when I have pushed myself too hard the weakness hits to a point that I don't notice a difference between sides. But often after my mestinon kicks in and I recover a little my muscles feel "stressed" like I ran a 1000 meter race, and the left leg usually seems to feel it more than the right when that happens.

I am definately right sided, so I figure it's because the left has to work even harder than the right, but looking at Erin's post maybe not?

I don't even know if this is the same sensation you're describing, but thought I'd throw my 2cents in for you .