New symptom that I wasn't expecting at this point, anyone else?

I am 37+2 and In the last 4-5 days, ive been getting woken up in the middle of the night, anywhere from 2-4AM because of my new indigestion. I get this full feeling in my throat, like it is full of air and acid that just lingers there. It doesn't burn much but it's uncomfortable and tastes like throw up 🤢 I usually wake up and take tums and sit up for a while so it doesn't get worse.