Sharp lower back pain is so common that if you haven’t experienced ... and doesn’t improve with rest Spreads down one or both legs, especially if the pain goes below the knee Causes weakness ...
When these muscles get too tight or weak, you can feel pulling, cramping, or a sharp pain ... Slowly lower that leg, then repeat as many times as you can without pain. Roll to your other side ...
If you feel severe pain at the injection site and notice swelling and redness or increased leg weakness, have someone take you to the nearest emergency room or call 911. Tell the emergency room ...