I just turned 65 last November. When I hit 40 I had to begin taking meds for high blood pressure (runs in the family). Until about 10 years ago I had to change meds about every 6-12 months to find something that would work. About 12 years ago I discovered I had Type 2 diabetes. I am on oral meds, not insulin. Then about 5 years ago, I started taking meds for high cholesterol. I think your problem might be the diabetes since it has a tendency to make you tired out all the time. In spite of all this I still enjoy RVing and I hope you will give it another try. The last thing you need to do is sit in the rocker-you will probably be dead in 6 months. I have seen this happen on more than one occasion.