skin or soft tissue infection
"I had a blister get infected on a cruise ship. The on board Dr put me on Cephalexen 4x daily at 500mg for 5 days. I've had insomnia from the get go. While awake, I had dizzy spells often, and bursts of anxiety. On night 3, I developed chills, and anxiety that woke me right up. I then vomited/diarrhea all night long. I'm currently awake on night 3 typing this. Chills have stopped but I'm holding nothing down."