Totally agree and well put! Things have come a long way in the past 30 - 50 years and in the case of PN, I do believe that in time, the medical community will develop ways to determine many of the causes of those labeled idiopathic. Millions of people suffer from this and some more than others. What makes this so difficult is that the sensations and symptoms vary to a huge degree. But, whatever the cause, the desire to find out why one has this can be worse than the disease itself. I'm in my 7th year and the more I am accepting this as the way it will be with no cure makes me focus more on making the best of what I do have and what I can do. I've always looked at the glass being half full and will continue to do so. Remain as positive as you can.