Thanks for writing your query.
After reading your post, I would like to advise that you should get yourself clinically examined and investigated.
It seems that you might be having infection of the gastrointestinal tract.
You can take an antacid
40mg once a day before meals along with Domperidone
along with digestive enzyme
preparation containing pepsin and fungal diastase after meals will be helpful.
Further medical management can be planned after clinical examination and investigation.
You can get your stool examined for any bacterial infection or parasitic infestation.
I hope this is helpful to you.