Bathroom Anxiety 😔

So I have anxiety about using the bathroom, which is the worst kind of anxiety by my judgement. I have this one class that it's super bad in. I start moving around thinking I have to use the bathroom and people look at me crazy. Then when I actually go, barely anything comes out and there is relief. It feels like there's pressure in my stomach every time I think I have to go. All of this is honestly annoying because I never get to go anywhere or do anything. It's like i'm pregnant. I go to the bathroom every five minutes and it sucks (Not literally). I just don't know how much I can take. I'm trying to get into a girls support group at school to see if that will help. I feel like I'm cursed or something. I was born constipated, I've always had it and I've tried flushing it out with miralax and nothing helps. People just don't understand what I'm going through. And then when I ditch my class, they bring court into it. Like, I'm scared of going to class. My biggest fear is to piss my pants infront of everyone and embarrass myself. So I ditch. And Idk whats gonna happen now because I can't do that. I have to go or else I might go to juvie. I honestly need help 😔😔