Okay I just looked up what an EMG is. Nevermind. I can wait!
I had an EMG done several years ago, back when I thought my numbness/weakness/tingling in my legs was related to a demyelinating disease called Charcot Marie Tooth. It was abnormal, and the neurologist diagnosed CMT based on family history. That was, of course, before my current lupus-like symptoms began, so my positive ANA wasn't investigated further.
And I'll probably have to do another one soon, since it's been over ten years since the last and they are investigating lupus.
I can tell you that the EMG is the most painful test I've ever experienced. But...I'll gladly do it again if it helps my doctors find out what's wrong. A few minutes of pain is worth it, if the risk of NOT knowing might be worse.