pneumonia
"I developed pneumonia after being treated in the hospital for an anaphylactic allergic response. Within a few days my oxygen was down to 92%. I was almost hospitalized, but begged the doc to let me stay out as it was 5 days until Christmas. I was prescribed a 5 day Z-Pak (Azithromycin). Today is day 3, I'm finally starting to feel better. Only side effect so far have been slightly loose stools, and a rapid pulse. (I'm 35 and otherwise healthy) I find I got stomach pains within an hour of taking it, so today I ate before I took it and that helped."