I feel a lot of tearing in my “grundle region” if I squeeze my rumble roller between my legs or if I’m doing dynamic stretches over a hurdle or a lowered Oly bar. Always feel better afterward which means my groin and adductors were probably just tight and stiff. Also the psoas connects to the lumbar spine so a tight psoas can cause lower back pain from lack of hip flexion.
Hence why my lower back hates me after deadlift or box jumps.