Hi I would suggest u keep a journal of the items that make u have these symptoms as it could indicate another issue...so do talk to ur Dr about this and make sure to avoid the foods that trigger the symptoms in the mean time.
It sounds like indigestion from the spiciness of the BBQ. Taking a good over the counter antacid should relieve your discomfort. Prevacid is a good one ... or just ask the pharmacist and you'll be just fine! Take care ....