I just had it done a week ago Friday.
I didn't have the part where the needle was stuck into the muscle.
I didn't think it was all that bad. I have muscle spasums. I thought it was kinda like them.
Of course I don't have as many as they had me jumping that day.
Just relax. That's what I did.
Hope it answers some questions for you. I'm still waiting for the results.
I do know I have some damage in my left arm. I find that strange because I'm right handed.
Oh well. I'm sure I have more testing coming up. Not happy about that but I can't stand the numb fingers and hand either.
Let us know how you make out.