I've been running since the end of October. It took at least 4 weeks before I could consistently do 30 minutes without walking. Although I've watched my pace continually drop to where I'm doing 3.2 miles between 10:15 and 10:25 it still isn't easy. Each time out I'll be 1/2- 1 mile in and wonder how I'll ever go the whole length. Somehow I manage to keep the legs going and eventually find that I'm done.