Diagnosis

Clostridium difficile (Greek kloster (κλωστήρ), spindle, and Latin difficile,[1] difficult), also known as "CDF/cdf", or "C. diff", is a species of Gram-positive bacteria of the genus Clostridium that causes diarrhea and other intestinal disease when competing bacteria are wiped out by antibiotics.

Apparently, you have this. But you had it before your trip to the ER and the antibiotics. Maybe. Who knows. The cure? Antibiotics 4X/day for 10 days. Dr. W let us go down to 3. And after today we're done. It helped a lot. I cheered when I saw real poop. Who knew I would ever cheer about poop. (OK, see potty training.) And then we thought phew now things will get back to normal until ....