Recently met up with some old friends and they are all into running. Some run marathons and very keen to get me involved. I said that I didn't really like running but do alot of walking. They laughed and said but you don't even have a dog! I live in a beautiful rural area and alot of my walks are up steep hills which do get me breathless and get the heart pumping. I'm 5ft 1 and 7 stone so don t have any weight problems. I'm asthmatic and running really hurts my chest. Aibu that this is the only exercise I get?