I suffer from acute reflux due to a dysfunctional stomach and severe IBS.
I require a regime of Nexium, Domperidone and Spasmonal. Also there are various foods that I can't tolerate e.g. coffee, the onion family(leeks,spring onions, garlic etc), cucumber, fatty foods, oranges, apples and fizzy drinks. I strongly recomend that you see your GP as there are various reasons for severe indigestion. You would be advised to not eat anything after 7-8pm. Also Peptac or Gaviscone liquid can be helpful. If you suffer from wind(belching) or have trapped wind, this can also cause indigestion, I have found that a teaspoon of sodium bicarbonate in a little water to be helpful and if that does not work try a teaspoon of brandy!