I feel and felt good completing the 5 miles, unfortunately my body doesn't
I have never been exhausted after my runs/walks but today I was. I had to sleep after breakfast and woke up with a headache. So I think my body has started complaining
All the very best for your half marathon. It takes courage to start from scratch, all over again. It's in our plan too along the way to the marathon. Maybe in 2-3 months time.