Thanks for posting your query.
You are most likely suffering from acute viral gastroenteritis
Presence of pain along with diarrhea
indicates the diagnosis.
You should consult with physician and should go for complete blood count
, stool examination & ultrasound
If you are suffering fromdehydration then you should get admission in hospital for 1-2 days.
You should try to maintain your hydration by taking oral rehydration solution.
You should also take antibiotics, anti-spasmodics and probiotics.
You should also avoid milk and all milk relted products.
Dr. Mayank Bhargava