Thanks for writing your query.
After reading your post, it seems that you are having infection of the gastrointestinal tract.
You should get following investigations done :-
1. Complete Blood Count(CBC).
2. Stool examination(Routine/Microscopic and for Occult blood).
You should get yourself examined clinically.
You can take antacid
20 mg once a day along with an antibiotic like Ciprofloxacin
500 mg twice a day and an antiamoebic like Metronidiazole 400 mg thrice a day. Also take a probiotic
Avoid spicy and heavy meals.
Drink lots of pure water to maintain hydration. You can take oral Rehydration Fluids if feeling dehydrated.
I hope this is helpful to you.