I obviously agree that you shouldn't worry about a pace on your post-workout recovery days, but you may be able to 'not feel as bad' with a few small tweaks.
One thing I used to notice as a high school coach was that many runners would have lunch at noon, practice at 3:30, and not have dinner until 7pm or later... That's a very long catabolic window on a young body. To remedy this, I had parents provide Gatorade, bananas, Clif Bars, Boost drinks, etc and it was "mandatory" that everyone got a snack while we finished practice with some strength and flexibility work.
If this case might apply to you, be sure to bring a post-run snack and/or recovery drink every day with some carbs and protein to consume immediately after your run. How many calories will depend on when you might eat dinner, but I would suggest 300-500kcals to kickstart the recovery process. Drink lots of water, as well.
Again, you should typically run easily after your harder days each week. However, if you are running 7mls+ w/ bad mechanics and feel awful at ~3:00+ per mile slower than race pace you are likely increasing your injury risk. Better to do two short, slow runs or take a rest day if you feel that bad...