If your mother has not passed blood anytime in the stools it is unlikely that she has ulcerative colitis
. If she is under emotional stress
IBS is a possibility but vomiting
unless it is self induced is uncommon. Has she lost weight ? It would be good for her to have an upper and lower GI endoscopy
and also test for a bacteria called H.Pylori.
Till a diagnosis is made she may take Omeperazole and Mebeverin for relief.
Dr. Noble Zachariah M.D.