For the last 5 or 6 weeks I've been waking up quite a lot in the early hours with pain around the instep of the right foot. However, it doesn't hurt when I get up and take my first steps. Also,when I'm walking or running everything seems fine. Compared to the left foot, the affected area of the right one is a little hard and at times, slightly swollen. I'm in the early stages of getting it checked out but was wondering if anyone had had something similar?
I ran my second marathon in just under 3:14. My half marathon best at the time was 1:32:05 and 10k 41:11. I've now got that down to 40:06 and would like to think I could do my next marathon in under 3:10. However, the above poster makes a really valid point about getting the long runs in on your marathon training plan. If you can do that, then who knows. What training plan you looking to follow?
Incidentally, McMillan gives you a predicted marathon time of just over 3:08 but you've got to do the miles in training.
I used the Run Less Run Faster plan for my first marathon, got injured 3 weeks out and ran 3:27:48, really suffering in the last 10k. Used P&D 55 mile (but with the Sunday long runs from the next plan up) for my second and ran 3:13:56 (same course) and felt very strong, passing loads of of people right to the end.
If you're doing about 30 miles a week at present, the 55 mile plan should be fine. As another poster says, it begins at 33 mile and gradually builds up. It also has an emphasis on "periodisation" which Run Less doesn't going in with intensive speed work from week one.
Also, if you are still a bit worried about not having enough mileage to do P&D, in Pfitzinger's Faster Road Racing book there are some good base building plans that could get your mileage up before starting one of his marathon plans.