ive had pn for 8 years, lost a career of 18 years i had prepared for, was going to be promoted , spent years furthering my education while working in addition to special training, seminars etc to advance up the career ladder, ran 8 miles a day, all gone in a flash. Now between PN and COPD not working, every step is painful and legs feel like cement with an exertion. Getting that blank look when i explain to doctors how i got PN, the best they come up with is ideopathic. But if i had to do again what i did i would.