I had a brain MRI in march 2013 and it was normal and I started having breathing problems in may had all breathing test the said it was normal except for excercising stress test all said breathing 50% of what I should be seen a cardiologist since June of last year had all the heart test all say normal and then since may of last year have had a lot of neurology problems a new system every month in October a MRI said small venous adnormality in the right occipal lobe just went and had a eye test today and he said need a spinal tap done to rule out Parkinson's, ms , brain tumors etc seen 8 neurologist all says the don't know head tilts to one side, right eye going inward head been shaking till sat midnight what could this mean?