Mayo does have specialists in intracranial hyper and hypotension in both Rochester and Jacksonville. I go to Jacksonville to see a Neurologist who specializes in this area. In Jacksonville she is identified as a headache specialist. It took me a while to find her. In my case the pressures are inconsistent and the lumbar puncture was not clearly indicative, but my symptoms were. Through trial and some error my headaches have lessened considerably. I hope this helps. Don’t give up! Your quality of life is worth the effort.