[sebasvisser]

Your hyper sensitivity to the gas’s might actually cause the stress, which in turn causes more symptoms. Find a way to relax and let the gas be. Find what works for you: mindfulness, sports, hypnosis, medication… However, try first to focus on normalising your perception of the gas.

[nerdponx]

I think the "hypersensitivity" line is BS, or at least it's not a complete explanation. In my and others' cases, the "psychiatric" GI symptoms precede the physiological ones. The only time I ever got a straight answer is when I ended up at the hospital because I was passing out, and they said it was likely some combination of low blood pressure and vagus nerve overstimulation.

[sirsinsalot]

It is well established that vagus disruption during digestion has all sorts of side effects.

Including anxiety.

[polishdude20]

Hmm interesting! Maybe I can try measuring my blood pressure during these times of tiredness.

[mtreis86]

This is called IBS, and is caused by bacteria digesting certain carbs very rapidly. Identify the foods with a low Fodmap diet, figure out the quantity that doesnt trigger issues, and live mostly normally. I cant eat fructose at all, and only small amounts of garlic or onions.