Note
Plan for this week is 35 today, 40 on Tuesday, 45 Thursday and 50 on Saturday. That should come out to around 40km, which isn't that far off a training week, especially once you throw in some cross-training on the in-between days.
If the Saturday run is niggle-free, then I'll treat next week as 'normal training' - keeping the mileage low, but quitting this nasty solo-run game, and if I'm really feeling up for it maybe a half session.