Andi - if your calf needs a couple of days, I say take them... it'll beat by a long way a year of troubles later! Stretch like mad when it's stopped hurting
I'm OK to run a mile every couple of days as long as it feels all right, back to the physio in a week, hope full she'll say it's time to start strengthening then

. Fascias are way looser than they were.
Sub 60... it'll happen guys, in the mean time I say be proud you're out there doing something that most people can't - running for more than an hour! .. and that includes me right now