Hello @rebelsue2
I'd say what @CreakyPete says: Don't be afraid to walk!
In my own experience you should look out for:
- Aches under the foot or the heel
- Knee pain that don't stop when you stop running
- Soreness on the inside of the shins (don't know the English term, but if the ligaments becomes inflamed it can take long to recover)
Muscle ache is good

But running is one of those things that is fine balanced, a little too much and you're out for a time. Most important is to stay able to run next week, so if you doubt it, wait! Take a walk instead. Or even better do some exercise that strengthens your core, like some:
http://www.realsimple.com/health/fitness-exercise/core-strengthening-exercises-00000000054969/index.htmlOr just Google core exercises till you find some that fits you in length and difficulty.
You can't imagine how much that will improve your running. A few weeks once a week and I'm sure you will get a Whauv feeling suddenly while running.
Good luck!