I have such bad heartburn with this pregnancy that it makes me throw up. I've tried staying away…

I have such bad heartburn with this pregnancy that it makes me throw up. I've tried staying away from any red sauce, greasy food etc. I've tried tums. I've tried milk. Even starting taking Zantac. Nothing is helping. Only time I feel better is if I throw up. I can't take it 😩any suggestions??