I've never ever exersize. I wanted to join the army and they predicted I'd get 15 mins after a few tries. I got 14.30 right off the bat. I'm quite tall and slim and was told it's very good but I hadn't eaten this morning and I hardly pushed myself.
The thing that stopped me most was chest pains.
So i guess 1. What was your first run time? 2. Is mine good and 3. Is chest pains before I'm actually tired normal? What can improve it. More running?