My roommate is a 90 year old woman who has been having intestinal problems for at least 3 weeks. She has trouble controlling her bowels and her stools are somewhat yellowish in color. It is not an overstatement to say she spends several hours each day on the toilet. She went to her doctor two weeks ago, but has not received any response and has been told that he s evaluating her case. She was ill and on antibiotics at the end of April for a respiratory virus, but other than that, there have been no significant changes in her health, diet, or medications. Any suggestions?