I normally don't run on Friday, but my schedule tomorrow is full, and I ran today rather than risk missing it tomorrow evening. My wakeup HR was 52 this morning, but my energy level was low. I ran 6 miles at a slow pace of 12 minutes. The day, though, was nice. Temperature in the low 50s and a partly cloudy sky.
On Wednesday I spent five hours on my feet, mostly just standing with a little bit of walking, and I was tired when I finished. As a result, my wakeup HR yesterday was 56. So, I think that today was a recovery day, and I probably shouldn't have added a mile to my run.