Hi, I Recently Had A Partial Colon Removal. The Ascending

Hi, I recently had a partial colon removal. The Ascending and half the transverse colon were removed, plus a cancerous tumor. I am having pain on my left side, to the side of my belly button and up and down a little above and below on the left side. Could this be a hernia? I also had Nuelasta for 5 days now, any possibility it is my spleen?