Husband hunting in Idaho, utilizing camper so not roughing it, called today and wanted suggestions. He is experiencing extreme flattulence and diarrhea for 5 days now. Can barely leave the restroom. I called our nurse and she said just drink lots of water and come home if vomiting and fever. He has tried Pepto bismo, Beano, and trying to eat light - he is 73 years old and is in good shape. Has had some IBS issues in the past, just not this bad.