I had this, then my teeth started getting sharper and sharper. I slowly transitioned to five day fasts, and then I started growing scales. Finally, when I hit seven day fasts, I lost my limbs and became cold blooded. I should have listened when they called it the snake diet. One things for sure, it’s effective.
(Sorry couldn’t help it)
It would be worth visiting your PCP or a dermatologist if you have the access, just to check it out.
To troubleshoot the issue it would be be worth going back on a balanced OMAD diet for a week or two to see if the situation improves. I wouldn’t continue multi-day fasting with such vigor until you’ve confirmed it’s not causing the issue.
ps great job keepin it up for 3 weeks