I have acid reflux and the last few months it has increased in severity. The last several weeks I have been drinking aloe vera juice and I think it's helping. It can give a bit of loose stool but in my case that works well as I tend to be constipated. I have also lately been taking Manuka honey and I think that's helping. This may be worth a try for you.

I have severe GERD. The only natural treatment I know of is what you eat. I eliminated tomato and citrus. The first years I would check the nutrition label on meats, and only buy the leanest. Bit by bit, I've had to eliminate all meat. I get my protein from beans, silken tofu, liquid egg substitute, TVP, whey protein chunks, and a little bit of nutritional yeast. I can use olive oil in moderation in cooking. The biggest thing is checking those nutrition labels and eliminating fat as much as you can. Oh also digestive enzymes. I use NOW Super Enzymes and Healthy Origins Digestive Enzymes. I also take 80mg omeprazole and 40mg famotidine at night. Best wishes that you find a solution soon.