bull drink water wrote:
you didn't say if you had a breathing problem.i did see a portable air machine on tv one day . try searching the web.you might have to pay for it ypurself, if you can't get through your doctors thick scull. if it's just the knees try a scooter like i did. AFTER THOUGHT tell your doctor you want another opinion.
No problem walking. The last few weeks I got out to the desert. Good clean air, but back home and my lungs are a hurting. Yes it is about time for a new doctor.