Severe heartburn

Any tips?? I’ve tried tums it is not helping… my appointment is Tuesday and I plan to talk to me midwife about it but I have to make it through the weekend. It’s been awful the last few days and I was up from 1:30 to after 3:00 this morning because of the pain and ended up puking. I have barely been eating too. All I’ve had today is a bowl of oatmeal, 2 pieces of toast and few bites of asparagus, pork, and salad at a cookout this evening. I couldn’t take more than 10 bites and have been feeling sick ever since again.