I feel you! What do you teach?
I have no idea how other teachers deal with awful morning sickne. ss. Seriously. Despite trying to keep my 'secret,' half the building most have figured it out by now thanks to all my bathroom visits. Thank goodness I transitioned from being a classroom teacher to a specialist a few years ago
I dismiss my students a few minutes early so that I can throw up between classes. (Until about noon every day, I am vomiting 2 or 3 times per hour! The nausea returns after work.) If I were still an elementary classroom teacher, I imagine a legion of concerned parents would force me to make an early announcement. As is, I had to tell my principal early, after I walked past her and my superintendent (!) with a bag of vomit. Charming.
I hope you have a vacation coming up! I have never been more grateful for a break.