Yup, mine shrank too. I went from a men's 10 to a ladies 9. I asked my doctor about it. She said the skeletal structure is the same, it's the soft tissue that has decreased in mass. In short our feet have become thinner by fat and muscle loss. I love it. I only get closed toe shoes though and can't imagine wearing a dress so no heels. Tomboy all the way.
Bari Jo