Good evening. I woke up with a dull headache and congested, so I took sudafed and went about my day. I have been having a burning feeling like heartburn most of the day. I didn t eat anything spicy or really heavy; one piece of sausage for breakfast, a salad for lunch, and ham, cheese and crackers for dinner. When I was bending over to put the laundry in the wash I felt like I could throw up, but not like nauseous, just the burning in my heart, throat and chest. Should I be concerned about dying in my sleep?