anxiety trigger 'bypassing' straight to gut?

I am 53 and was diagnosed as autistic 4 months ago.  I have had mental illnesses (depression and anxiety) for a very long time, at least as far back as my teens.  I also suffer very badly with IBS, and all of these issues have become much more severe in the last few years, meaning that I have not gone out to work for about a year, and rarely leave the house anyway.

I was explaining to my current psychotherapist that a psychiatrist told me to try diazepam when I am particularly anxious, but to me it feels like often when I experience a trigger, I do not really feel that my breathing nor heart rate are increasing, though I may start sweating a bit, but what I really notice is that straight away I feel pain in my lower abdomen, leading to an episode of awful IBS (without wanting to explain it too graphically).  I feel that somehow the worry goes straight to my gut, 'bypassing' the 'normal' symptoms of anxiety involving faster breathing and heart rate.  It is as if the IBS starts very very quickly, but the lungs and heart are not really involved.

The psychotherapist has admitted that he is not an expert on autism nor IBS, but he told me that he has heard of other autistic people experiencing this 'bypass' of symptoms of anxiety.  I had never heard of this before, though I have researched the area quite a lot.  So is he correct?  Is this really a common autistic experience of an anxiety-inducing trigger?  Has anyone else felt that this happens to them?

Many thanks in advance.

Parents
  • Anxiety does not truly "bypass" the brain, but rather activates the "brain-gut axis," a bidirectional communication pathway that sends stress signals to the digestive system via the nervous system, particularly the vagus nerve. This communication results in physical symptoms such as stomach pain, nausea, cramping, changes in gut motility, and a knot in the stomach, often referred to as the "fight or flight" response impacting your gut.

Reply
  • Anxiety does not truly "bypass" the brain, but rather activates the "brain-gut axis," a bidirectional communication pathway that sends stress signals to the digestive system via the nervous system, particularly the vagus nerve. This communication results in physical symptoms such as stomach pain, nausea, cramping, changes in gut motility, and a knot in the stomach, often referred to as the "fight or flight" response impacting your gut.

Children
  • Many thanks for explaining that.
    The more I read about it, the more I am aware that the nervous system of the gut is not really separate from the brain.  I even heard someone at the cutting edge of research in this area say that the gut is the 1st brain,  and the brain is the 2nd brain (in terms of the timing of their development).  If only there was an easy way to fix this communication, but that seems even harder to achieve now that I know my wiring is different.

  • Anxiety does not truly "bypass" the brain, but rather activates the "brain-gut axis," a bidirectional communication pathway that sends stress signals to the digestive system via the nervous system, particularly the vagus nerve. This communication results in physical symptoms such as stomach pain, nausea, cramping, changes in gut motility, and a knot in the stomach, often referred to as the "fight or flight" response impacting your gut. - Office ally