Hi there -
You should have your stomach ph checked out or check out various websites on the internet where they give you advice how you can check your acid level. If you have low stomach acid, the more tumms or PPI's or any other antacids you take, you make matters worse, as they are all calcium based, and calcium cancels out acid ... (You still have acid even if you have low stomach acid, and if you have reflux, heartburn can still then be a problem, or in my case, I had sticky toffee phlegm/mucus in my throat, coughed my lungs out ..) I was diagnosed with high acid, given omeprazole, one of the most common PPI's, check your ingredients .. which made matters worse, so I ditched same, did research, came to the conclusion that if these things didnt help ... I must have low stomach acid. found how important enzymes are ... (didnt realise we kill them off when we cook our veges ...), bought some digestive enzymes and within 3 days saw a dramatic change. You can also try the natural way .. eat lots and lots of raw stuff, bananas, pineapple, dates, papaya, etc.
Research all these subjects ... you learn a lot.