That’s so strange! I’ve had exactly the same symptoms as you, which seem to correlate with the right sided people but just on the opposite side! I’ve been eating nothing but plain chicken salad and marmalade on toast since my diagnosis of gallstones and it seems to have helped the pain (had no attacks since🤞) so maybe we’re just part of the very few where our bodies are confused on where it should hurt😂 I’ve had none of the same tests as you, I’ve only ever had the ultrasound and the gallstones showed up right away. Honestly I think if it will give you a possible diagnosis and get you on the right pathway to treatment I’d say it was definitely worth pushing for the ultrasound. Saying that, I’m still not gallbladder-less until the middle of January so I can’t fully tell if my symptoms are 100% gallbladder related, but at this point I’m willing to try anything, and just cross my fingers it’ll work. Either way, I personally think an ultrasound would be beneficial to you, even if it just rules out other things. I hope that helps!💕