Nausea

Omg so early this morning around 2 this morning I was falling asleep then all of a sudden I woke up and my chest was burning, felt like something was stuck in my throat trying to come up. Mind you I haven't really been having an appetite lately but I ate a jr cheeseburger 🍔 from Wendy's to put something on my stomach. Started gagging but nothing was coming up so then I had to make it come up. But for like 10 minutes my chest was burning, never had that happen with any of my pregnancies! Has anyone else experienced this burning sensation in there chest and feeling like throwing up?