I figured out that if I don't run at least 2 times a week, I lose my fitness very quickly.
If I hadn't run for 3 weeks, there is no way I would be able to make it 1/2 a mile without stopping.
At this point, I haven't run in 8 weeks... and I can barely run 3-4 minutes without needing to walk... and I am HUFFING and PUFFING and HURTING at the end of those 3 minutes!
Get back to running... keep with it... it will come back. Best of luck!
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"