I Have Anxiety

Ugh, terrible day. I've been on edge all week, lord knows why, but I woke up this morning almost jumping out of my own skin. I had two classes right in a row today, first chem then arabic. I drag myself to chem, not ready for class but knowing I could hold myself together for an hour lecture. But, turns out today we were doing partner exercises, yay! So we were drawing Lewis Dot diagrams, these little models of atoms that show where the electrons are, and I can already feel the edges of an attack coming, when the professor comes up to me and my partner, points at one of her diagrams and says to me "tell me what's wrong with this." I am absolutely stumped, because both of our diagrams are identical and I thought they were right, so I'm struggling and she's just demanding I tell her what's wrong with it. I'm always non-verbal right before and during my attacks, so I just shut up. I can't say anything. All my energy is going towards not falling apart in the middle of chem class. I'm assuming she fixed the diagram at some point, but I couldn't hear her, all I could do was nod along and prevent myself from falling into an attack. I spent the rest of the class fighting to remain calm, totally unable to concentrate on the lesson. So now I'm going to have to explain to one of my friends why I need the notes despite being in class. But I obviously couldn't manage another class that day. The only person in that class I could text also happened to be my RA, so now I'm going to have to explain to her what's going on and it's just. so. hard.
Sorry for rambling