that is probably why I don't like to do it. I force myself to walk at least 1.5 miles at least 4 days a week, takes roughly 30 min's. By the time I am done I can barely walk straight and my legs feel like jello. I keep saying to myself it will get easier. When I tell some ppl about how rough it is on my legs and how sore they are they look at me like I'm kinda crazy, almost to say you are only walking at 3 miles a hour for a half hour, it's not that hard. I want to say back to them you add 100 lbs around your waist, thighs and butt and lets see how fast you go...
sorry for the vent, just got back from working out and i'm really tired and sore, but it's a good kind of sore.


). I can tell you, the 4 minute stretches didn't last a long time at all. I can't remember how long it took, but I know it was a short amount of time before I could walk longer and faster. Wait until your muscles get stronger and you get the tingly, pulsing, GOOD feeling in your legs. It's awesome!! Good luck!! 
I've said it a million times on here, but only because it's true: if I can do this, ANYone can.

I only just started walking consistently myself. But luckily it doesn't seem to take that long to start not wheezing:P And I agree with tamaralynn, music makes a big difference!