I'm a night shifter so my whole body goes through hell every week when I go back to day-sleep or back to night-sleep. This gives me MASSIVE horizontal ridges, like a sideways seashell. So, I ask, is there something crazy or stressful about your weekend? Do you stay up late partying for a few days and then go back to a work week schedule? That might be all it takes.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.