Dyan, that's exactly it, the pain in the stomach is an acid 'flare' that I get - just a few seconds at it's worst, and is always followed by leakage of acid into my oesophagus.
Sparkle, yes have tried Gaviscon Advance, and I agree, it's the best of the bunch - the trouble I have is it's consistency, it actually makes me gag and feels like I'm choking/drowning. Feels like I'm swallowing - oh eek - no won't say, some of you might be having supper! x