I'm a 37 year old woman. I've always been a little twitchy, but a couple of months ago I started having a stiff, rigid, tense feeling in my limbs that almost feels crampy. I've had a few cramps in my feet. I've also had a lot of tics and weakness.Some days it is hard to lift items and walk up steps. It fluctuates alot from day to day. I had a little numbness in the beginning, but none now.
Does als fluctuate from day to day, does it affect all the limbs at once. I was wondering if it could be something like myasthenia gravis, but i don't have any facial symptoms and that wouldn't explain the tics and rigidity. All my blood work came back normal, except a positive ANA (would mg cause this), a borderline impaired glucose tolerance test, a negative CK (or it might sound like polymyositis). My MRI came back normal, and 5 more weeks until my EMG. Any information would really be appreciated.