Hello
@Anitakt , and welcome
Sorry if we seem like a nosy bunch, but we do need a little more to go on, as you might have already suspected from
@Antje77 's reply. Not because we like to turn you inside-out, but when we give advice it could be something you're already doing, so it'd be moot, or it could clash with medication you're on, or other conditions you might have, or... You name it, we could botch it. If you can let us know as many details as possible, that'd help. Just daily meals/drinks, whether you're restricting carbs already, don't want to or do want help with that, what medication you're on (not just for diabetes)... Anything you can fill us in on, would be helpful.
Anyway, again, welcome, and I hope we'll be able to help, because you do need to get that surgery sorted! Hopefully we can assist you along that path.
Jo