What Are the Reasons for Pulling Sensation in Lower Abdomen? Why Do I Feel Movement in My Lower Abdomen: Causes and Treatment Part one in profile Postural drainage is a technique used to help clear mucus from lungs, involving positioning, gravity, bronchiectasis, cystic fibrosis, pneumonia, COPD, percussion, vibration, therapy, respiratory clearance, airway, secretions, Have you ever noticed a pulsing in your belly when lying down? It's often normal, but if it feels unusually strong or comes with new pain, it could point to an abdominal