After a week off I never felt comfortable! Why? Did I start too fast or was it my wife's Okonomiyaki? (A yummy Osaka traditional dish). Ive heard that when you take a rest from long runs, even for a week, continue with those scheduled shorter high intensity workouts. Ill be sure to remember this for next time. Lower back still tight. Cant wait to get my foam roller from Running Warehouse. Now to Google how to use it.