shakie,
I would advise a cut back week this week, down to 20 miles maybe. Then back up again the following week. That doesn't mean that you have to cut the speed. But remember it is to be an easier week if your legs are to benefit. It is much better for your legs and spine if you can find a trail/grass to run intervals on. Or a track. Grass is difficult at this time of year due to the rain?-((
some good plans.