FEET SHRINKING IS REAL

Girls...
I knew there was some foot shrinkage after starting HRT, but today is my 1 year HRTversary, and I can say that my feet have shrunk 2 and a half sizes O_O
I have been a men's 12 since I was a teenager, and now I am a men's 9.5/women's 11.5.
I got a pair of women's flats that I really loved that were a tight fit in August, and they have been mostly my daily shoe since then, I noticed the other day for the first time they were kind of loose, so I went to the mall and measured my feet in a shoe store and low and behold, massive difference.

Has anyone else had results like this?