how old are you? How did you lose weight – from not eating or from diarrhea?

First, fever may be a symptom of inflammation or infection (anywhere in the body – tuberculosis, viral pneumonia, etc). It may also appear in hyperthyroidism, lymphoma and some cancers. Most of mentioned conditions would be reflected in the blood – did you have any blood test lately, if so, what were results?

Diverticula in the sigmoid colon (?) can cause constipation, and resulting straining may cause hemorrhoids. Hemorrhoids can be treated by a simple outpatient procedure…Drugs, especially painkillers may also cause constipation.

what was said to be a cause of the spasming part of the intestine? Were some diverticles revealed at lower GI?
What was the reason for histerectomy? Do you have/had raised temperature?

Is the substance that covers the stool translucent, so mucus?

Mucus may be from prolonged stay of the stool in the colon, from hemorrhoids, IBS, intestinal parasites or bowel inflammation.

Have you tried to adjust the diet? Avoiding sugars and eating some high-fibre food and drinking enough water and regular physical activity, like walking, can help.

Diverticulosis should be seen during lower GI. Diverticulitis is usually present with diarrhea and fever.

The spasming part of the colon may be due to injury of nerves during histerectomy or later complications.

Has your husband got any official diagnosis so far? Fistules are common in Crohn’s disaese – this can be usually diagnosed by colonoscopy.

Did he have stool tests for parasites? Is there any food that he thinks it triggers his symptoms? Are symptoms related to meals and, if yes, in what time after the meal he gets symptoms (minutes, hours?) Any blood in the stool?