Hi sana,
Welcome to HCM.
Pain around umbilicus which shifts to right
Iliac Fossa, is typical of
Appendicitis.
You have not mentioned whether your Stool examination was done prior to starting Metrogyl, because it is the drug of choice in amoebiasis. If you do not have Amoebiasis, metrogyl alone is of little value.
Better get an Ultrasound Study done as well as routine
blood test to rule out infection (Appendicitis), since Total count of WBC of more than 11000 with
neutrophilia is indicative of infection.
Of course a surgeon can also provisionally diagnose appendicitis by eliciting
rebound tenderness at MCBurney's Point.
It is prudent to avoid blind treatment. As far as possible a firm diagnosis supported by investigations is ideal, before starting any treatment, exception being relieving the patient's agony by immediate management of that agony.
Wish you speedy recovery.