@4lori4 Hi there - try to eat foods that are safe for the gallbladder so, nothing greasy or fatty. Google post-cholesectomy syndrome. You may be experiencing it and it often improves over time. Was your gallbladder removed due to gallstones, due to infection or because it was failing? I don't understand what the doctor meant by saying it 'wasn't that bad.' Depending on the issue that caused the need for the cholesectomy, a visual observation of the organ wouldn't provide enough information to determine 'how bad' it was.
What helps me: small, non-greasy meals, eating more frequently so you're never completely empty, nibbling on Saltines or pretzel thins with surface salt, drinking hot black tea.
Keep track of your symptoms - when are they better, when are they worse? Maintain a food diary. To speed up the diagnosis process, document things like that.
You are not alone. The nausea is extremely common.