popsie, thanks so much for your concern. It is my doctor who is performing the test next Friday. She should have my MRI results by then and I will question her as to why this test is being performed. I did get a handout that talks about the tests, but it does not mention pain. I will also question her about this and probably make my decision then. I have tingling 24/7 in the soles of my feet and I think she wanted to see if I have nerve damage, does that make sense? I have still not ruled out that this is lyme related because I had Lyme from 7/06 to 3/08. But this time my symptons are different.