Anyone else know that feeling....

When you're on your period or in a few days and you go around sucking in your stomach and you just eat all the food and my little brother who is 11 doesn't know what a period is and he's just like are you ok fatty and I'm just like I'm not fat and he's like you eating a lot of food and I'm just like you try bleeding for a week with all kinds of cravings and cramps that feel like HELL