I'm new on here, but have been reading posts for a couple of weeks now. I am heading to Mayo next week in Rochester, MN. I am undiagnosed after five months of complete chaos. I am walking very weird, have periodic seizures (but managed on Keppra), pulsing nerve pain in my back, thighs, arms; tremors, headaches, vision issues....it all started with the worst headache of my life five mths ago...Brain MRI/Brain MRA and LP all negative 5 mths ago. Have had no tests since, but have been in agressive PT..that has helped, but relapsed last month. I will let you know how it goes.