this sounds bizarre but my gf is going through the same thing. I wake up at all hours of the night choking on nothing. Sometimes it tastes like bile but mostly I just end up in a coughing fit!
I had this happen last week when heartburn/ reflux was bad. Out of the blue I woke up choking and was coughing hard to try to catch my breath. It seemed acid went up my throat and some went down my windpipe. I jumped up and ran to the bathroom trying to cough/throw up. I thought I was dying. Of course DH didn't hear a peep and slept through it all.
Re: Wake up choking?