Every time I try to fall asleep I choke 🙁

Im 27 weeks pregnant I feel huge btw and I came to lie down in bed and as soon as I layed down I started to get really bad heartburn so I took some tums which helped right away, the heartburn was gone!!

So I fell asleep and as soon as I did I woke up Choking from the food going up my throat 🙁 now I’m here in the dark sitting down in bed because I’m scared of falling asleep and it doesn’t help that I still keep feeling food going up my esophagus 😩 that and I feel like I need to burp constantly ugh is there anything I can do or take ? Heartburn is gone though and I tried putting a whole bunch of pillows and I still start Choking as soon as I fall asleep