I had just been to the doctor 3 days prior and was doing fine. Then, I became ill all at once with symptoms of flu or bad cold. I went to bed for it seemed to worsen from stay up. I woke up 4 or 5 times, due to caughing, sneezing, and thick saliva in my nose and throat. The next day a persistent fatigue started to set in which lasted 4 or 5 days. I couldn't stand very long..needed to sit down, got wore down by doing simple tasks. Called my doctor and he had me come back and see him. I explained everything that had rapidly happened to me and he took blood samples, took me off my 5mg Norvasc, as my BP was 98/62. He prescribed Metronidazole 250mg for a week. Diahorrea had developed and stayed thru 3-4 days. I had been taking Amitiza 8MCG for well over a month with no problems. So, he had me cease that medication for the time being. I've taken one of the Metronidazole pills, as I write, and do feel a little better already. Does this sound like we are on the right track?