Yes, it sounds like classic gallbladder symptoms. By all means, if you don't feel well see your doctor. They can refer to someone or they might just order the tests themselves.
As far as eating, eat no-fat or low-fat and you should be OK. If you aren't hungry, don't eat.
I didn't realize how many gallbladder posts there were until I started having problems with mine, now I'm replying to them all!
I just had my gallbladder out last Wednesday. All is well!
Good luck and feel better.