HER2 Support Group Forums - EMG,carpal tunnel, and lymphedema risks

I was at a neurosurgeon's office yesterday and he recommended an EMG to determine if some of the problems are being caused by a carpal tunnel issue. After my mastectomy I developed lymphedema but with help of a great therapist I got it under control. Recently I have been going to therapy for my neck and shoulder. It appears that I am still having minor issues with lymphedema. I called today to ask if there was a risk of increasing or triggering lymphedema in that arm from the EMG since it involves needles. The person I talked with told me that I would need to discuss it with the neurologist who would conduct the EMG. She also told me that the neurosurgeon wanted me to know that if I chose not to have this test then there was nothing he could do for me. Then she told me that she detected some mistrust. I am not sure if this was coming from the doctor or from her. I ask questions. I will always ask questions. And this was the first time I had met him. I guess I am questioning his decision to order a test when he wasn't sure if it would affect my arm negatively. He also wants me to wear a brace for six weeks. I am going to try but anything the least bit snug, even a sleeve bothers me.

After some research it seems that I should be able to have the test. I hope to hear from the neurologist tomorrow. I also discovered in my reading that women who have had a mastectomy are at higher risk of developing carpal tunnel and that aromatase inhibitors (Arimidex was specifically mentioned) also increase the risks. Has as anyone else had an EMG conducted on their affected arm?i am also worrying about the possibility of surgery but I may be borrowing trouble. I would love to hear from as someone who has dealt with this.