For two weeks I was filled with snot I could not get it up. Then it got better. Next day Dr gave me methylprednisone and so antibiotic. So true, never too late for exercise to help. You can stay as long as you care to. My assured lived to almost 100. I'm getting a nebulizer too, I have an oxygen concentrated machine I only use for sex. I'm 68. Wife hates me every two three weeks. Not leaving for awhile. 30 percent function. I heard you can live with 6 percent. Good luck.