I've never been a strong runner. I just went out for a 3mile run in the cold, hadn't ran beforehand for a long time. When I finished I felt like in was going to be sick and fell to the ground. I felt awful for about 40 minutes.
Some of that might have been the cold lungs but did I try too much too soon or should I do the same run until it's easier?
I'm trying to push hard and get fit as fast as possible.