Well ... they ran a lot of blood&urine&feces tests everytime it went really ugly (vomiting for days in a row and stuff). Echographies too.
All those that made the echographies said that because in everyone of them there wasn't really anything wrong it's probably a slow gall bladder. Same with the generalist and specialist doctors that consulted me.
I guess they diagnosed me because all the tests were fine even tho i was vomiting my guts out continously. The funny thing is each doctor got to the same conclusion on their own.
But yea, the daily symptoms sure fit with those of a slow gall bladder.
What's strange about all this is that it might have it's slow moments. For example yesterday i ate lots of meatballs/mayonaise/peanutbutter (not combined) that should've killed it.

But i felt fine all day. On other days i start feeling very nauseaous when i take only one bite of an apple or a spoon of peanut butter or a sip of milk and i stop. It's the randomness of it all that's bugging me.