I have knee pain and sometimes it is hard for me to walk. I am not a candidate for surgery as I am being treated for possible neurophy or parkinsons. I had a stroke in 2010 and by-pass surgery in 2013. Taking levodopa pills 4 times a day plud Plavix and carvedilol for heart, a cholesteral tablet, small mg of Zoloft, lisinaprll, prescribed fish oil, q10, one aspirin.