I Am A 72 Year Old Male Polio Survivor 1949

I am a 72 year old male polio survivor 1949 bulbar of the spine both muscles and nerves. I currently have C.O.P.D. and poly neuropathy in both my legs. The later is what I am questioning. Mornings are the worst walking is near impossible with the aches and pain, sometimes it feels like everynerve ending in my both has just lit up. This causes me to freeze in place till they back off. AS the day progresses I start to move around better. any suggestions to improve life would be appreciated. Also are there any exercises I can do to improve my situation??? Thank you Bill