I fell onto my hand arm, did not even notice pain at the time, it was my knee that was hurting. But that was Jan 5 and still have the sprain pain. I can feel it into the bicep, and if I reach to brush my hair, grasp a cup, I can not support the weight and it hurts the wrist.

I can feel in my neck tight strands. I think the tightness is coming down from the neck from the jam...Maybe you had overuse and it is affecting the wrist.

One thing for sure the nerves leave the spine at the cervical spine, and travel into the arm as the medial, ulnar and radial nerves down three feet into the fingers.

Anywhere there is a hinge, it can make that sick nerve hurt. Yesterday it was across the top of my wrist, not the bottom. Today it is the palm and thumb. I think because I had to drive to a work claim, generally dh drives.

I too get ganglion with increased activity but they did go away.