hello m.balaji, if you can consult a local homoeopath in person i advise that.

if you are not able to do so, please clarify, do you have any aggravation of the pain at a particular time of day or night *currently?

my intial thoughts are of Lyc because of the evening aggravation [not sure if current] plus the symptom of abdominal pain extending to the leg, as well as the general wind and pressure in the stomach with other GI symptoms.
also i think perhaps nux or sulf might be needed in due course since the condition was suppressed by antibiotics - that makes it potentially not straigtforward and is why i would prefer you to consult a homoeopath in person if possible, for your own benefit.