Hi All:

I've been jogging for about 7 months. Each time I go for a run (8K), I suffer each time. It seems I strugle every time to the end. I'm in good shape, I cycle on my road bike almost everyday, I go to spin class...with no problem, but when I jog, I can't seem to pick up the pace, I'm so out of breath, I can barly make it. I have a puffer, I have exercised enduced asthma, but I know others who have this and run with no problem. I don't talk when I jog, usually I'm by myself...What is wrong with me??