Thank for asking to HCM
I really appreciate your concern the history given here might the functional pain that might not be having any specific reason, If I would be your doctor then I would treat you with the following medicines,
1) Tab Dicyclomine
three time in day
2) Tab clinidium with Chlorodiazepoxide three times in day
if this fails to responds then you need to get done the scanning study, Ultrasonography
is best, this would clear the doubt if any thing ever went wrong during surgery, take care and have nice day.