also you might do some stress reduction exercises..
breathing, yoga, and perhaps liquids to keep stomach
contents diluted...

Ulcers, stomach cancer, stomach infections, IBS, and
thyroid disease can ... Acid Reflux...all may present
with indigestion


http://www.healthy.net/scr/article.asp?Id=3357

be very cautious if you see blood (or coffee ground like substance
in your stool--which indicated digested blood...therefore bleeding
in the upper Gastro intestinal tract...)