I just got a brand new pair of danskos, I wear a size 9 us and 40 danskos buy I got 41 for extra room because I have a wider foot. I wore this to my job while I'm in nursing school which is retail on a concrete floor. I wore them for almost my full 8 hour shift no problem, but I switched to a pair of Clark's with about 2 hours left in my shift. Now my left arch is so swollen and I can barely walk. Are my Clark's just too flat compared the danskos having such a high arch that I hurt my own feet, or are my danskos just took new at the time to wear for a full shift? This is the only pair of danskos I've ever worm that has done this to me feet. Help!