Hello Kraman....I certainly didn't know this could happen so long after either until it did. It was a Strep bacteria and they feel it came from dental work, even though I took my premeds for dental work. The surgeon said it had been brewing in there for a long time with no real symptoms until I went septic. I was very active after my hip replacement. I walked 5 miles a day, hiked when I could and rode bike for fun. I now have a tricycle I ride outside and an upright exercise bike I ride inside daily. I pretty much did everything after original surgery, except ride horses. I rode my horse a couple times, just at a walk, but gave that up. She was getting old too, haha! It sounds like you are doing well and that is great. Keep up with walking, it's the best thing to keep your bones strong, prevent osteoporosis and prevent fractures. Wishing you continued good health......Cindy