I wouldn't do it, unless there was no other way to determine your condition. I did turn down two invasive tests. Lost a doctor over it too. I didn't like the risk, as I was already hurting. Didn't do EMG, and a myleogram, and no CT scan with dye either. I had one before and had a reaction to the dye used. I know alot of others may say go ahead and do the diagnosis, but for myself, I turn down pain at all costs. I survived and had surgery without those tests. No matter what you decide, look up all risks and benefits. I wish you all the best. ginnie