what is going on???

yesterday I was folding clothes and out of nowhere I started to have a hot flash with sweating a little dizziness but not much and feeling very sick to my stomach. I have been very tired lately and I am on lamictal, wellburtin, xnanx, and ambien for bi-polar. I work out every morning with an hour to two hours of cardio and weights and am not losing weight. I went and got a piece of candy during this episode and about 30 minutes later I felt fine. I am 29 years old 5' 3" and 175 pounds. Can you please tell me what is going on? Thank you