I wonder if this could be contributing to the problem. I find I get stomach ache and wind if I sit too long.
‘Digestion: Sitting down after you've eaten causes your abdominal contents to compress, slowing down digestion. Sluggish digestion, in turn, can lead to cramping, bloating, heartburn, and constipation, as well as dysbiosis in your gastrointestinal tract, a condition caused by microbial imbalances in your body.’