Hi Loose stools are not always symptoms of indigestion.Some symptoms of indigestion are Bloating, Belching/gas, Nausea and vomiting, An acidic taste in your mouth, Fullness during or after a meal, Growling stomach, Burning in your stomach or upper belly and Belly pain.You are most likely suffering from food poisoning or gatro-enteritis.I advise you get a stool exam, culture and sensitivity test if the symptoms continue as you might need antibiotics if caused by a bacterium.In the meantime, you can take an anti-emetic like vogalene if vomiting persist, pain medication like paracetamol, oral rehydration salt and Zinc tablets.Eat bananas as well if you can lay hands on.You will need to see a Doctor for examination and work-ups. Hope might answer helps to make you regain your health faster Best regards