Any extraordinary stress in your life ?
Broken heart ?
Student exams ?
New potential allergens like a new shampoo, cat, dog, new apartment, new laundry detergent, ?
Stressful relationship with parents ? PTSD ?
Are you taking some extra vitamin A ?
Or not enough of it ?
Several essential nutrients can cause peeling skin, mostly vitamin A (not enough of or too much of)
Not enough of omega 3 can also cause it.
I would start by eliminating the shampoo and by getting a shower filter, to change the quality of water.
Wash your hair with borax instead of shampoo, it dissolves fat, but makes no foam.