Tshadow-the TOS symptoms are very interesting. There are some similarities with PN symptoms.

I suffer from dizzy spells all the time. Almost like a sinking feeling, but I have never heard a PN sufferer complain of that. I have floaters on and off and I also have blurred vision sometimes. The vision problems are not all the time at all, but they started about 6 years ago as well.

It's interesting that you mentioned having an MRI scan with fluid. At the time I had my MRI's done I could not have them with fluid, because I was pregnant. I wonder if the findings would be different.

I'm glad that I brought some new ideas to your attention for research. It really can be very very confusing having some of these neurological problems. Most of all, it's so frustrating not having a diagnosis and not having successful treatment for it.