DEAR DR. ROACH: I am a 77-year-old male who apparently suffered a case of food poisoning. I say apparently because no cause was ever discovered for the uncontrollable vomiting and diarrhea that lasted for a whole day and recurred briefly the following morning.
A trip to the emergency room involved many tests, but nothing turned up except a troponin level well over 0.04 ng/mL, which prompted an angi…