rsbob 

I had a similar issue occur which gradually worsened with time. As we age, feet still grow and become less tolerant to heat and pressure. My solution was Jumping up a size and a half from a 10 to an 11.5. But that was not enough, I loosened the forward most strap to the max - the rear has boa, but loosening the forward most was the key. They are Specialized road shoes. Best of luck.