I am 77 y/o male. I remember having a spinal tap but it came back negative. (Oops) It was probably just before the vaccine. I got better and moved on. I was misdiagnosed as Parkinsons for nearly 10years. Fortunately, In the course of changing neurologist PPS was skillfully diagnosed on an EMG. (I don't have to take that medicine anymore.) I have always been active, running, cycling, etc. I am now where walking is very difficult. I am very discouraged with P.T. What's the point? Scooter shopping is next. I'm not excited.