I had a massive gallbladder attack when I was 17 and had it removed. I was doubled over in pain and felt like I could not breath. I never had any problems until that time. Does it happen at specific times. But I know alot of people who had lingering pain. Other than the hurtng for days it almost sounds like "dumping syndrome". I'm not a doctor of course, so I would just suggest seeing one ASAP!
Good luck and hope you feel better soon.
(PS. Alot of doctors use the "Four F's" in diagnosing gallbladder issues initially- Fat (sorry...it does sound mean!), Forty (and over), Female, and Fertile. When I was seventeen I weighed 90lbs....so I don't think this is a great diagnostic scale!!!)