It is due to accumulation of gas in the GIT.
A sudden decrease in barometric pressure is a sign that a storm is coming.
It means you need to go to the toilet :)
Hydroureter
An expansion of the aortic vein
An approaching storm
He's fat. His belly is lined with good capons (castrated chickens).
Distension of the stomach
Yes
Bronchiectasis
Symptoms include:Cramping and belly pain that comes and goes. The pain can occur around or below the belly button.Vomiting.Bloating.Constipation and a lack of gas, if the intestine is completely blocked.Diarrhea, if the intestine is partly blocked.
Left lower abdominal distension often times is the result of constipation. The fecal material backs up into the ascending colon causing distension. I the absence of constipation, there could be diverticuli, a weakening in the colon wall causing a "pouch to form.
They would indicate either a sudden increase or decrease in elevation, which could mean a hill, mountain, or depression in topography.