While simply lying in bed this morning I stretched as I woke. My Arms above my head reaching out and twisting slightly towards my left side. My RIGHT side ribcage area popped. Slightly loud enough to hear and definitely felt. Now it hurts to twist a certain direction or bend over. 7 out of 10 pain scale when bending down or certain twists. Almost no pain if standing as long as those movements are avoided. The end of my Ribs closest to my abdomen are somewhat sore to the touch now and growing worse. About my 7th or 8th rib down according to a chart I looked at. What is this possibly? Medical assistance required? Treatment?