Requesting Tomorrow Off in Advance

I'm taking a day off tomorrow. My gastrointestinal symptoms are getting worse today. I only drank a bowl of porridge and ate a few noodles all day... but now I feel as full as if I ate hot pot and barbecue!

The burps have a strange smell, and I need to go to the toilet to "pass gas" after sitting for a while (although it's all gas, it feels too much like the urge to defecate, so I can't completely trust it). It feels like I can release the air of a balloon every ten minutes now...

I can't sit still at all, and I really can't concentrate on writing. I hope things will get better tomorrow. I'm taking a day off now.