Pain on right side..gallbladder or kidney?

I have been having pain on my right side under my rib cage but more towards my back. The pain comes and goes and I am nauseous all the time, I have alot of gas and belching and dizzy.i went to the ER and they didnt see anything no gallstones/kidney stones. But the pain is still there and it HURTS. I just havent felt like myself for the past two weeks since the pain started...Any suggestions....Also everyone in my family has had thier gallbladder removed.