you have 2 issues affecting your health simultaneously. severe sleep apnea is more serious than acid reflux. must pick one over the other first. for acid reflux, you need to worry about gas in your stomach damaging your esophagus as your esophageal valve weakens with age. air going in is less acidic than the gas cumming out. get treated with either omeprazole or pantoprazole capsules, one capsule a day, for your acid reflux. also, as i've mentioned before, get a breath test done for presence of helicobacter pylori in your gi tract, especially lower stomach near the duodenum. sinkies (and asians in general) are infected with h. pylori (due to the diet and food they eat), and they don't know about it thinking it's just gerd or acid reflux until too late. it can cause stomach cancer.