The pain I had from the cyst on my spleen referred up to my left shoulder. It got to the point to where it was painful on the upper side of the abdomen as well. I never had any pain in my legs. It was more like a constant dull pain. All sharp pain went up to my shoulder.
Every situation is different, and I'm not a doctor, but your case doesn't sound like the spleen (or at least similar to my situation).