Sudden onset of right sided pain, no activity prior to have pulled a muscle, pain from right lower rib area towards right hip, intense pain then ease?

Right flank pain: most likely u have kidney stone Or uretric stone. Needs CT scan done

Could be a problem: Pains in the right side of your abdomen could be gallbladder related - these could give you that squeeze and release quality to which you seem to be referring. Other possibilities include appendix and colitis. The long and short is, you need n evaluation right away - abdominal ultrasound and CT.