Pain in lower left abdomen?

Please, only serious answers here. I, at first thought it was gas, but the pain is still in the lower left side of my abdomen. I've had my appendics removed already, so that leaves that out. It feels as if I've just had surgery. I can press on it, and it feels as if I've just don't sit ups.... show more Please, only serious answers here. I, at first thought it was gas, but the pain is still in the lower left side of my abdomen. I've had my appendics removed already, so that leaves that out. It feels as if I've just had surgery. I can press on it, and it feels as if I've just don't sit ups. It's not cramps, but as I said, a pain that feels as if I've just had surgery. Does anyone know what this could possibly be? It all started around the time I stacked some firewood.

Thanks for any feed back
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