Thanks for writing your query.
After reading your post, it seems that you might have got acute gastroenteritis
, which may be due to contaminated food.
I would suggest that you should get yourself clinically examined and investigated by your doctor.
You should take an antacid
40 mg along with Domperidone
30 mg once a day before meals. An antibiotic and anti amoebic may be added by your doctor according to the clinical evaluation.
Eat light meals prepared under hygienic conditions. Also take care of your hydration.
I hope this is helpful to you.