Windchime, stress/anxiety which are differnt things,in IBS or in general is not what a lot of people actually understand or know or think about when it comes to how it actually works. Also it is both physical and mental stress.
There circuits hard wired to the brain that influence the digestive system.
The Central nervous system is connected to the peripheral nervous system and then very importantly the The Autonomic Nervous System, that runs many of the bodies functions, importantly Digestion.
The ANS is most important in two situations:
In emergencies that cause stress and require us to
"fight" or take "flight" (run away)
and
In nonemergencies that allow us to "rest" and "digest."
http://faculty.washington.edu/chudler/auto.html
The fight or flight effects digestions and can through emotions,such as fear, antisapatory anxiety, anxiety and others.
Have you ever heard of people getting the S**t scared out of them?
http://www.thebodysoulconnection.com/EducationCenter/fight.html
The fight or flight can make you go and sometimes make you vomit even or cause nausea. This is connected to IBS in many ways. Importantly through whats called the HPA axis or The hypothalamic-pituitary-adrenal axis.
Have you ever heard the term homeostasis?
"Comment from Emeran A. Mayer, M.D. -- In contrast to the common interpretation of the term "stress" as a psychological phenomenon, it should be understood as any real or perceived perturbation of an organism's homeostasis, or state of harmony or balance. For example, in this viewpoint a severe hemorrhage, starvation, extreme temperature, or worry about the unpredictable onset of abdominal pain all qualify as stressors -- some as "physical" stressors, others as "psychological" stressors. The fear to leave the house in the morning without knowing if one can make it to work without having to stop on the freeway because of an uncontrollable bowel movement, or the fear of experiencing uncontrollable abdominal discomfort during an important business meeting are sufficient stressors to activate the central stress system.
The central stress system involves the release of chemical stress mediators in the brain (such as corticotropin releasing factor), which in turn orchestrate an integrated autonomic, behavioral, neuroendocrine, and pain modulatory response. This biological response in turn will alter the way the brain and the viscera interact, and this altered brain-gut interaction can result in worsening of IBS symptoms. Thus, pain and discomfort, fear of these symptoms, activation of the stress response, and modulation of the brain-gut interactions by stress mediators are part of a vicious cycle which need to be interrupted to produce symptom relief."
Careful about not eating somewhat, some IBSers don't eat for long periods of time, then eat and that can physically stress the gut and cause problems, which is one reason why small meals are important.
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My website on IBS is www.ibshealth.com
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