I have a friend who has a son with frequent tummy woes. He was diagnosed with cyclic vomiting syndrome. What is it?
is a chronic functional disorder of unknown etiology that is characterized by paroxysmal, recurrent episodes of vomiting.
A child or adult with this may vomit for many hours or even a couple days. It may be the same general timeframe each time. A person may go weeks or months without episodes in between.
