Today we were shopping and out of know where I got really hot then cold really hot and my face turned bright red I felt like I was ganna pass out? Help

Need Proper eval. I would go see your doctor because this question can not be answered without seeing you and doing test. It sounds like you had a vegal vegal reaction, but his could be something with your heart or your brain but could be as simple as low blood sugar. Have someone drive you to the doctor because you don't want this to happen behind the wheel.