Normal to eat this?

i have pretty nasty feet. they are cracked and have some sort of dark green fungus on them. They havent stopped itching in about a year and they smell like molded milk. seriously. but ever since my friend got me a foot scraper, i started collecting all the thick pieces of skin that come from my heels. i have about half a jar full and when im just relaxing to myself ill grab a handful of skin and chew on it piece by piece..kind of like sunflower seeds. i enjoy this except for when i get a really dark green piece. seems normal to me.