I dont know whats wrong with my left foot, but it absolutely kills.
It suddenly started hurting walking the dog Sunday night. I went for 6 miler across the fields on Monday night and it was excruciating
Its the underside of my foot, towards the inside - kind of in between the ball of my foot and the arch. I usually do a gentle-ish 3 miler on the roads on a Wednesday night ahead of the tough hill session Thursday.
Might have to do a session on the turbo-trainer and then stick my foot in a bucket of water for an hour and hope that helps.
These damn little aches and pain. We all get them, but they dont stop being a pain (pun intended).