Maybe a stupid question, but turns out I have two classes that are over a ten minute walk from eachother, with only 10 minutes in between them. On top of that, the first one is a two hour class starting at 8:30, which is almost guaranteed I'll need to pee by the time it's over considering that's the time of day I'm drinking coffee lol. I've had a professor in the past lose her marbles over people getting up before class was over, so I feel awkward/rude having to walk out a few minutes early.

Should I email the professor and let her know or should I just leave it? In my limited experience with two hour classes here it seems like they sometimes wrap up a little early, but I don't know if that'll be the case with this one, so I'm trying to figure out a game plan before my anxious brain gets the best of me.