Thought I’d take a chance and post this before I try to diagnose it.
DD is having pain on meaty part of bottom hand between pinky and wrist. She is contacting the knob with that part of her hand somewhere at or just after contact with the ball. No bruising but I can tell it is bothering her. I checked her grip and it seemed normal. I think for some reason she is stopping the bat before completely finishing her swing. I *think* the bat knob then digs into her hand. She tried moving her bottom hand up off the knob before telling me about it, she says it didn’t help.