Hi!
and it's good to have you join us! I hate needles, too! But I wanted answers, so.. I had the nerve conduction and EMG tests, but not the muscle biopsy. It was planned but since I was diagnosed, the dr. left it up to me because the information we might get wouldn't really affect my treatment plan, I decided I didn't need to have it. At least at that time. I was abit overwhelmed to say the least!! The tests were at my neurologist's office, done by the neurologist and a tech. Scarey, and I am a nurse, and did I mention I HATE needles?? 
The needles are little tiny ones, and they offered lidocaine to numb the spots up first, but I said put one in and then I will decide. So it ended up I just had four little tiny jabs, but quick. One in each arm and leg. Not bad at all really, but I didn't look. During the actual test, where you are hooked up to wires that generate waveform tracings, The twitches were a bit ..... unnerving.... 
shall I say, pun intended?? And I said ouch each time just because I wanted to. What I found almost unbearable were the sounds they put in my headphones hooked up to alien looking computers. Due, I learned later, to nerve inflammation, the sounds in my rt ear almost caused me to stop the test. It wasn't pain, it was as if a violin and nails down a chalkboard were screaming up and down every nerve in my body. It didn't last very long, though. The nurse was really comforting and chatted to me alot. Cause I told her I HATE NEEDLES!! I was glad it was over, but dreading it was alot worse than the actual tests. It took about and hour and a half all together. Keep us posted,
sue
p.s. I have helped with biopsies, and the dr. will give a few jabs of lidocaine over the spot, and then wait, and then jab for a muscle tissue sample that patients often describe as a quick pinch or little punch. Some get a stitch or two, I have seen several that just got a bandaid. So I hope someone else who actually had one can describe theirs for you.
hugs,
p.p.s and now for the really funny part..... I am going for acupuncture and the benefits are a blessing but I still hate the needles! 