I Woke This Morning With What Feels Like A Pulled

I woke this morning with what feels like a pulled muscle in my abdomen on the left side. It is tender to touch. I had two bowel movements but nothing more this morning, no nausea and no vomiting. I have felt for the past few days like I was fighting off a UTI. Should I go to have this checked out? I am not running a fever but am concerned as I have never experienced this before.