umm gallbladder would hurt int he upper right quadrant of your tummy. Had mine out a couple years ago.
But I've also heard of some getting back pain. Mine was more painful than labor and I couldn't breath too well and most definitely couldn't sleep I didn't sleep at all that night thinking it was heartburn and called my mom to drive me to ER in the morning.
HMM wondering because I get aches back on my side and just to the back but the last couple weeks I've gotten twinges and sharp stabby pains in lower right abdominal area. I don't think it is appendix though as it comes and goes I've not vomited though I did have one morning two weeks ago I surely could have and no fever. Plus the two tests they had my daughter do when she had some a while back I could pass. That was pressing the area and jumping both would be excruciating and it wasn't so I figure it was ovaries or something else. I suspect I get ovarian cysts.