"when phlegm catches"

"I Have a Stitch in My Side!" Flank Phlegm Stagnation Muscle Spasm Might Not Be Just Simple Muscle Pain

"Ouch!" Have you ever experienced a sudden, sharp pain in your flank that made your entire body freeze? With pain so severe that it even hurts to breathe, you may have brushed it off, thinking you merely caught a muscle knot again. However, signals from our body should never be taken lightly.