after several more years of experiments I was able to run up to 10k with softer shoes and attending closely to how I was tensing my feet slightly, which had a cumulative effect over the distance.
4romeostevensit
Never identified from multiple run labs. I do pronate but only slightly. I also tended to 'kick out' my right foot on the backswing a bit, and fixing that improved things. But even with good shoes and analysis and practice of running form I can't run more than 3 miles. Don't have flat feet.
I settled on Altra shoes, which is one of the few companies making shoes shaped like a human foot as far as I can tell.
What was the root cause of your feet hurting?
I'm going through the same thing, but don't know if I've found the right pair of shoes - I have flat feet and tend to overpronate