Didn't Rene Descartes say, "I think I see the Tasmanian Devil flying around, therefore I am seeing the Tasmanian Devil flying around?" It's been a while since I took philosophy.

Dude if you're that exhausted your not going to be getting anything out of being in class. Figure this out before you fall too far behind.

Go to a sleep technician and get this sorted other wise get a doctors appointment and note explaining why you won't be able to attend for a couple of weeks while you sort out your circadian rhythm.

The question is, why are you sitting in a class with 200 people in the middle of a pandemic?

OP here. This actually happened a couple years ago. I was taking Adderall for ADHD and drinking an egregious amount of coffee. I would stay up for up to 6 days in a row on a regular basis because I was working almost full-time and taking 15 credits of heavy math and science classes and there was no time for sleep. I was going to school in LA and working on my undergrad degree in Biology. I moved back home to Iowa a year later and switched to nursing school which is 10x easier. I'm doing much better now. That wasn't my only hallucination though. I once sat in the middle of the road for several minutes waiting to turn into my apartment because I thought the parking lot entrance was being blocked by a guy wearing a giant easter bunny costume on a riding lawn mower XD