Heartburn/acid reflux

Jamie
I've been popping tums. I tried milk. I prop Myself up with 3 pillows. Nothing will stop this volcanic like relux from coming up. It keeps me awake at night. I feel like I'm going to puke at times it's so bad. Any other advice on how to treat the heart burn. It's becoming highly unbearable and I'm only 19.5 weeks!!!