welcome to the site, awww ok diarrhoea can be a problem after any gastric surgery because of the movement of the digestive tract. Sometimes it can be from the fluids you are drinking too. Have you spoke to your dietitian yet..?? They can give you a full dietary assessment which will highlight if any foods could be causing the issue.
do you have any pain..???? Regardless of the diarrhoea you need to make sure your drinking enough clear fluids too… I know this can be hard but lots of little sips throughout the day
what are you managing to get in – drink wise..??
hope this eases soon for you… if your in Facebook there are lots of newbies on the bandboozled Bariatrics group, feel free to Join us, sometimes a little reassurance for people in the same boat can help loads too xx