Lots of factors gives rise to gastric distress, what you have to discover what causes the phenomenon.Indigestion, flu, dizziness, heartburn and food poisoning can cause nausea, and treatment depends on what caused the upset stomach.
If you can identify the cause of anxiety, just go in removing the causes. Nausea from vertigo often disappears by itself.
Drink ginger tea, chamomile or peppermint if you overeat or have the flu. Tea should you should settle your stomach.
Drinking mineral water also helps.
Take Gastal for heartburn. You will feel relieved because it neutralizes stomach acid. Gastal can cause constipation or diarrhea, excessive, and therefore caution.
Avoid alcohol, cigarettes, aspirin, etc.., As they aggravate stomach upset.