I did week 2 day 2 today. I feel great after a run. I've done all of my runs on the treadmill so far because the weather hasn't cooperated, but I hope to get outside for day 3. I am sticking to the plan and doing exactly what it says to do. I even downloaded Ullery's podcast to keep me ontrack. My question is this: About 5 minutes after I finish the workout I feel like I could do more. I want to keep walking/running. Before I started last week I was a true couch potato. I didn't do anything active. I'm 37 and about 25lbs. overweight, but fairly healthy otherwise. Should I do another set of run/walk or should I just stick to the plan?