36 weeks pregnant tomorrow

Tomorrow I will be 36 weeks pregnant and I am starting to feel a toll on my body. My stomach has dropped and it's getting more uncomfortable to sleep. It also feeling like I pulled a muscle in my groin area or sore muscle in the lower left side of my stomach. It feels like the soreness you get after working out your abs which I am obviously not doing ?. This is my second baby and I just can't wait to go into labor so I can see my daughter. Is any one else experiencing soreness?