Cindy, my legs ache when fatigued. As do my arms and neck. And when the muscles of my throat start fatiguing, not only does my voice start to thin and "give out", but I will get a strong ache there.
Lizzie, thanks loads for that link. That is exactly the kind of thing we need to start posting so as to build up our 'library' of info. Why don't you post it on the useful sites for MG at the top of the forum page?
Hugs,