The shoulder is one of the most complex joints in the body. It's one of only two sets of ball and socket joints (the other set is at your hips) and it allows for movement in all planes of motion.

Pain in the ... A separated shoulder happens when there’s an injury to the ligaments that hold your shoulder to the collarbone. This can cause the ligaments to stretch or to completely tear.

If you're struggling with low back pain, the issue might just be in your SI joint ... stretch out those muscles to regain some movement. Lie down on the ground with your arms out at shoulder ...