Brittle nails and hair. Dry, yellow skin covered with soft hair called lanugo. Excessive thirst and frequent urination. Lower body temperature. Reduced muscle mass.
Irregular heart rhythms, even heart failure.
Change in personality. Sudden outbursts of hostility or anger. Binging in secret. Feeling a lack of control over what or how much one is eating. Misuse of laxatives, diuretics or enemas.