OMG Jay, a cattle prod?? You poor thing.

Thank you Bob. So I guess this will be considered my baseline. Tell me, if there is any compressed nerves in any part of the body, will this test reveal that and where?

The test will only show if there is a problem between
the two test points used.
It will probably be from the knees down, and from the
elbows to the fingers.(I call my doc 'Frankenstein' to his face, and ask which light socket do I put my finger into, when the tech comes in - just as friendly jokes.)
The two tests are 'small' electrical jolts or electrical current 'zaps' that make the muscles twitch, and needles similar to acupuncture that register nerve conduction - and are audibly heard, and graphically seen, on the computer screen (hardly feel those-no current used).
It can show reduced electrical stimuli from compression, for carpal tunnel, tarsal tunnel and related nerve pathways. Other 'Compressed' nerves aren't normally in this area unless surgery or trauma (injury) was done in that area. If your tests are outside the extremities - I'm unfamiliar with the procedure.

Hope:

You will do fine as others have said. I have had three EMG done and they didnt't hurt that much. It was a bit painful but nothing that i would classify as one of the strongest pains i've felt. I have cramps from period every month, EMG, nothing to do with them.

Good luck!