I’m not sure if this is for me

I had to call out sick today because I’ve been throwing up all night, but I think it’s actually from anxiety, not norovirus. I’ve been a lead middle school teacher for 1.5 years now, subbed the year prior. I don’t really know what to say except I’m overwhelmed by work and don’t know how to keep going. I teach four different grades, five different classes, and planning alone exhausts me. Classroom management is a nightmare. Other teachers seem so positive and connected with the kids and I feel so disconnected from everything. My mom died earlier this year and I haven’t ruled out that I’m just in a weird grieving phase, but regardless idk what to do. I just want a break