I read it as a reflexive response to behavioral cues, meaning the body is responding automatically to context rather than conscious intent.

There's the “yeah I made it here” in the driveway, which is basically a cognitive checkpoint where the brain relaxes its inhibitory grip. But as he approaches the bathroom, his reflexes to defecate and micturate reengage more fully, because environmental cues lower cortical suppression and let autonomic programs run.

If you take some time to focus on your bodily sensations more mindfully in these situations, you'll also notice the sensation comes in waves. What you’re feeling there is not random discomfort but rhythmic signaling. That's the conscious input of your visceral afferent nervous system reporting back on the peristaltic waves of your intestinal smooth muscle, which contract in cycles to move contents forward.

As a matter of mind body somatic reintegration, you'll probably find that using your conscious mind to thank the nerves for keeping you in the loop will likely make the sensation less distressing. This works because acknowledgment engages higher cortical regulation rather than threat processing, which reduces amplification of the signal.

Most bodies get more upset when they feel like the rest of their complaints are going unheard by the cerebrum, because ignored signals tend to escalate in intensity to force attention. Even when there's not a way for you to address the problem immediately, you gotta let them know they're heard, or the nervous system keeps turning up the volume.