Unexplained muscle pain in the arms and legs may be the result of benign issues ... such as in the upper extremities or lower back. Muscle aches can occur following a new activity or after ...
and legs at the same time, such as standing, walking, and climbing. Psoas syndrome is an injury or irritation of one of these muscles. This can cause pain in lower back, butt, groin, or hip.
But if you’ve got a stabbing, shooting, or tingling pain in one leg, and/or weakness and numbness, you may have sciatica. The NHS says that one in 20 people with lower back pain go on to develop ...