Clarissa is starvosing to death
This is why she is constantly posting about food she says she can't eat and is literally eating her lip balm and trying not to shit.
Encyclopedia.com says these are her symptoms.....
shrinkage of such vital organs as the heart, lungs, ovaries, or testes, and gradual loss of their functions
chronic diarrhea
anemia
reduction in muscle mass and consequent weakness
lowered body temperature combined with extreme sensitivity to cold
decreased ability to digest food because of lack of digestive acid production
irritability and difficulty with mental concentration
immune deficiency
swelling from fluid under the skin
decreased sex drive