Intense focus leading to intestinal reaction?

This is probably silly, but I'm curious if anyone else could shed some light on this for me. Whenever I spend an amount of time intensely fantasizing about enemas and suppositories, later in the day I will have a bloaty, irritated bowel-ish response. For instance, I've recently written two chapters of a story in which the protagonist is put through some pretty intense clean out play. In an attempt to produce a better story (at least I hope), while I write, I visualize that I'm the protagonist having those things happen to me and imagining those symptoms (cramps, bloatiness, etc).

Both time I sat down to write, that night I had an upset tummy without any other explanation. I.. I mean I sort of like it, in a weird way, because I literally never have bowel troubles aside from this (or a bout of food poisoning once). Anyway, does anyone else experience this psychosomatic induced bowel response after prolonged focus?

"The brain has a direct effect on the stomach and intestines. For example, the very thought of eating can release the stomach's juices before food gets there. This connection goes both ways. A troubled intestine can send signals to the brain, just as a troubled brain can send signals to the gut. Therefore, a person's stomach or intestinal distress can be the cause or the product of anxiety, stress, or depression. That's because the brain and the gastrointestinal (GI) system are intimately connected.

This is especially true in cases where a person experiences gastrointestinal upset with no obvious physical cause. For such functional GI disorders, it is difficult to try to heal a distressed gut without considering the role of stress and emotion."

– https://www.health.harvard.edu/diseases-and-conditions/the-gut-brain-connection

My body has the same behavior, was about to make a post a few weeks ago. Very useful for anal play lol