I went to the er 3 weeks ago doubled over in pain located on my left side. The first time they told me it was nothing. The second time they told me I had a fatty cyst on my left kidney to follow up with a Dr. So I go to the Dr and they tell me it's a small mass on my kidney nothing to worry about it shouldn't cause any pain. Yet here I am still in extreme pain wondering what this is? I have a family history of kidney problems on my maternal grandfather's side including kidney cancer. I just would love to know why I'm in so much pain but no one seems to want to look into it.