Crohns at school

I HATE how they handle Crohns at my school. I swear it feels like they just brush me off as having Ibs 90% of the time and this one specific teacher of mine gives me a really dirty look whenever I ask to use the bathroom during a lesson. She literally KNOWS that I'm allowed to go whenever because of this reason and while she does still let me go, she often just says 'well, do you REALLY need to go RIGHT now??" and like... yes?? Not to mention the fact that they make me sit in the nurses office for like an hour with crippling stomach cramps before they call my mom to take me home... sorry, just a rant but it's frustrating is all😭