You sure its not your prostrate?
What a great story especially being stationed in Alaska sounds like you've had a very productive life even though you have multiple disorders, very inspiring indeed.
What meds are you taking now for P/N pain?

by the way i also have sleep apnea and cpap though not central, there isnt much info about sleep apnea causing P/N but one would imagine a low or dangerously low amount of oxygen in the blood would effect the nerves in some way.