eating breakfast starts your metabolism, it let's you better digest your later meals.
if you absolutely can't eat breakfast, try protein shakes or just east something very minor, like a piece of bread or a fruit.
it's in human genes that when enough calories aren't being taken in that the body will then store fat from what you do eat, this means you'll be tired very often and not have much stamina.
and nothing is wrong with your mom, she cares about your health as she should