Your story sounds familiar to me. I had so much hope in getting answers at Mayo Clinic Scottsdale AZ. It was a big disappointment. One neuro a lady with a hypenated name which I wont tell you. Told me I was a nut job. That made me cry. So she then assumes I am crying because I did not have a terrible disease. Then I get a copy of all my tests and her test that were done said they could not get a read on my neuro tests because I was to fat. It can not pick up the signal if you have a layer of fat on you.  So now I ask myself when you see an obese patient you know what that test can detect so why put them through it knowing this info?  Insurance money maybe? But how then can you rule stuff out with those results?  The other neuro guy then gave me my results of my MRI and I have a Dawsons Finger lesion in my brain between the two sides of my brain in the nerve bundle. So do not tell me I am not having issues with that going on. I was and still am very upset with her treatment of me. So good luck wiht Mayo hopefully you will go to another location.