I had an EMG with my herniated disc before I broke my leg. Gosh..I can't imagine having one on my leg. It really didn't hurt too bad except for when they start pulsing it really hard. That hurt like heck.
The bad part is..atleast my dr also does it on your good side so that they have a "range" to judge your bad side against. That is what was not fun because heck..your nerves aren't bad on that side. LOL
Keep us posted. Hope you get to feeling better.