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You might be wearing shoes that are too small. They might fit well length-wise but it sounds like you need more width. Get fitted at a running store and go .5 down from what they recommend for running shoes (unless your feet are wide). I had this same issue with 8 and 8.5. After getting fitted for 10 in running shoes, I switched to 9.5 for skate shoes, and haven’t experienced that pain.