Hi, I am 22 and have a hard painful lump under my right rib cage. Its extremely painful throughout the lump, my side and all the way up to my shoulder blade. I also have terrible shooting pains through my bones that keep my awake at night, pain in my lower and upper abdomen with an on and off fever. Recently I ve lost 12 lbs, have no appetite, am nauseous and getting sick frequently. I went to the ER today but they ran no blood tests, or any other kind of testing. He felt the lump and said it might be a torn muscle but he didn t know and sent me on my way. I can t get into my primary care physician until mid August and am very concerned this is not a torn muscle. Do you know what this might be?