Brief Answer:
Observe, rehydrate, bland diet

Detailed Answer:
Hello,
Thank you for your query.
I'm Dr. Shuba Hariprasad and will be answering your query today.

Would you clarify a few things for me, please?
*did you have any fever? Any blood or mucus in stools?
*any vomiting?
*where exactly is the pain in your abdomen - upper/lower, which side?
*did you eat anything unusual or have any food or drink from outside?
*do you have any other medical issues or take any medications?
*have you had such episodes of loose stools with pain earlier? If so, how frequently?
*do you smoke or consume alcohol?

Based on your query, it seems to be food poisoning. However, as you took an appropriate antibiotic, your symptoms could have reduced due to this.
I recommend :
-don't take any further medications.
-take plenty of water and probiotics twice a day (yogurt with active cultures)
-take bland & easily digestible foods (simple carbs, protein) till you recover from this.

If you develop symptoms again with the same or more intensity, along with fever, I suggest :
-Symptomatic treatment (antispasmodic, antacids)
-rehydration with oral solutions
-a full course of antibiotics if symptoms persist beyond 2 days.

Hope this helps. Please get back to me with the above-requested information so that I can help you further.

Wish you good health.
Regards,
Dr. Shuba Hariprasad

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