I went to the gym last week & i pulled a muscle in my stomache?

[Logans Mommy 12/15/09]

Its on my left side.. It hurts when i walk.. laugh.. basically move.. roll in bed.. What can i do about it? it really hurts.. should i get checked out or will it eventually stop hurting? I was Jogging & Walkin in intervals at the gym & i have been hurting since...