Vasopressin has three main effects: 1  Increasing the water permeability of distal convoluted tubule and collecting duct cells in the kidney, thus allowing water reabsorption and excretion of more concentrated urine, i.e., antidiuresis.
Some of the complications of gastroparesis include: 1  Food that stays in the stomach too long can ferment, which can lead to the growth of bacteria.  Food in the stomach can harden into a solid collection, called a bezoar. Bezoars can cause obstructions in the stomach that keep food from passing into the small intestine.
What are you experiencing is a common thing for many CPAP users : aerophagia. The main cause of aerophagia or stomach bloating is swallowing the air when you sleep. This happens in the early days of CPAP therapy, but it should go away in time. However, there are some other problems that will cause aerophagia, and you have to deal with these problems to find a relief from gas problems: