Sawgunner
You have heard this before here on had it , Stop when it hurts. I myself would do neurological involvement. Go to a neurologist let him know he is the last resort for your issues. Get all your medical records that are connected to your ratings. Then write them a book, using your dr notes bombard them with correct info. Not a bunch of papers that is unorganized. Also a question to ask yourself do you have frequent urination, if you do i bet it could be caused by your back issues. Go to a urologists. Are you a young fellow, if you are ,well you should not have frequent urination. A lot of things go wrong with back issues. After you have all of this paperwork get one of your buddys to look at it. Your claim paperwork is like writing a paper to graduate with your masters degree! I read had it often I'm surprised someone has not chimed in, but what you posted is a question that very few people know the answer to. Find a good dr that will work with you, and the best of luck to you, and do the best you can!