Feel like this happened out of nowhere

32 year old male. Out of nowhere I started having acid reflux two months ago and it’s been bad ever since, I also do have anxiety so maybe that’s why? I’ve had 2-3 coffees a day for the past 10 years and it’s never given me a problem. Now I feel like it might be, I also drink a lot of sparkling water not sure if that could be an issue. Doctor told me to try nexxium and all that did was give me stomach pain so I had to stop. Tums isn’t really working, they told me maybe pepcid? Idk I just HATE taking medication in general I’m so against it. Any natural options that I can do? Also if I were to quit coffee is there other caffeine options I can do that would be okay?