Hi,
Noted the history about your husband and understood the concerns.
Upset stomach, lots of gurgling and such symptoms are suggestive of
gastroenteritis or
allergy to some foods.
That is why he started taking flavored milk he developed sweating and nausea.
I would advise him the following:
Get the stool and blood tested.
Ultrasonography of abdomen.
A course of an antibiotic,
Metronidazole and probiotics if the reports are indicating an intestinal infection.
Stop the foods and beverages that instigate the symptoms or increase these.
Avoid milk and milk products completely.
Any further investigations like
Colonoscopy and CT scan of abdomen if the medical management fails to know more about possible diagnosis and thus get treated accordingly.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T Chandrakant,
General Surgeon