anxiety corresponds to fight/flight activation I think, which would disrupt digestion because body's resources being channeled to greater perceived priorities
and I imagine on top of that there are things that create IBS that can also create anxiety
The body has mutually exclusive nervous system states with corresponding motor strategies: Attunment (social emotion, motion, communication), or Threat (run, jump, be in conflict), orFreeze (immbolize, conserve energy, act dead). You’re always in one of them.
MEMORIZE THIS.
over 90% of serotonin is produced by gut microbiota; there are strong correlations between dysbiosis and many "mental health" concerns, including depression, anxiety, autism, and even schizophrenia