Hi, and I am glad you are going to Mayo clinic. I was DX'd not with MG but with auto immune problems. They set up a trial for me to go to, at Columbia Missouri medical facility. Mayo was very very good to me, and got to the bottom of my problems when all other doctors were stumped. Testing lasted days. I saw a doctor who was actually named Dr. Mayo! This was back in 1989. I sure wish you all the best, and that they finally DX you. ginnie