Yes, I Was Slumped Over Kind Of Sideways Sitting In

yes, I was slumped over kind of sideways sitting in the same position for awhile at my computer. when I stood felt like a side cramp on the left side. 24 hours later it still feel the same and if I breathe in deep it hurts really bad and almost takes my breath, to walk, bend move wrong hurts. thinking maybe my kidney or lungs. your thoughts.