@hollster339 Interesting hypothesis. Caveat: As always, I am not medically trained at all. I'll assume the diverticulitis episodes were confirmed with CT scans and the existence of diverticulum (diverticulosis) has been confirmed by a colonoscopy and/or CT scans. Thinking through the process of your hypothesis, you're thinking that you are swallowing air that is getting to your colon, causing pressure, which is then causing the diverticulum to become inflamed (diverticulitis). Is that your thought process? I could understand a hypothesis of air pressure causing the initial creation of diverticulum by pushing on week spots in the colon; but I can also understand a counter-hypothesis that air in the colon would spread out in length when it reaches resistance of the colon wall unlike a hard bolus piece of feces caused by constipation (the current leading cause of both diverticulosis and diverticulitis at this point, from what I've read). Although maybe the air behind a bolus would cause it to have more pressure against the colon wall? Again, interesting hypothesis. Go to an AI and ask it something like this: "What do reputable medical entities say regarding air in the colon via swallowing air during sleep due to a CPAP machine causing diverticulosis and/or diverticulitis?" When I did it in Gemini it had useful info, the most useful being this:

Why You Might See a Connection
While a direct "cause-and-effect" link hasn't been proven, there are several reasons why they are often discussed together:

Pressure in the Colon: Diverticulosis is caused by high pressure within the colon that pushes the lining out through weak spots in the muscle wall. While medical literature usually attributes this to straining (constipation), patients often wonder if the "internal pressure" from swallowed air adds to this stress.

Symptom Mimicry: The bloating and "trapped gas" pain from CPAP can feel very similar to a mild diverticulitis flare-up, leading to confusion during diagnosis.

Shared Risk Factors: Both sleep apnea (requiring CPAP) and diverticular disease share common risk factors like obesity and aging, meaning many people naturally have both conditions simultaneously.