Not that I am Into this sort of thing, but I found it interesting. On my many hours of web searching, I came across this when I searched parasite infection. Bet you will slip off shoes to check, LOL, I did and I do have stars, whatever that really means.
I haven't been here long enough to post a link so you're gonna have to look up sivasanta dot blogspot dot com, in search on the site look up foot glyphology. Spooky!