After last night's poor run I decided to run early, after school drop-off, to see if perhaps yesterday was down to food intake.
Three weetabix for breakfast (didn't want to take any chances), about 3 hours before I ran, and a bottle of water about an hour before.
I didn't look at my Garmin until I finished, and I'm still not sure of the mile splits, but I ran just under 4 miles at roughly 9:20 pace. Felt that I really had to push myself, could easily have given up and walked home. Verdict: better but not great.