The other day, I started feeling nausea, then less than hour later I started getting chills, then a 3rd symptom, being lightheaded, then heartburn started to set in, then in few hours I had dry heaves for about 10 minutes. The illness finally ended a few hours later with diarrhea lasting about 2 hours. For the last 24 hours, following the illness, I've had almost constant heartburn. What illness did I contract and should be concerned that this will cause long term heartburn?