Sep 8, - 10 Signs You Are Actually Having TOO MUCH Sex With Your Person. By Holly Holly is the author of Severe(d): A Creepy Poetry Collection. Sep 22, - Sex can leave evidence, every cheater knows that. Those long sessions of heavy thrusting will leave your back in pain. Lower back pain is often caused by a torn/pulled muscle or ligament. This happens during sudden movements that place too much stress on the lower back during sex.