this might come from moodiness and stress. your body can't relax during times of rest. also, your body might have not desires to eat. if this situation gets any worse like loss of weight and less ability to sleep you might want to visit a psychiatrist or a place for relaxation practices.
i hope this helped.
ang mitolohiya ay kalipunan ng kwento na nabuo at winasak ng mga diyos at diyosa