As a child, I once had an episode of traveling numbness. From one toe, across my foot, up the entire side of my body (down one side of the arm, across the fingers, back up to the shoulder), across my face (including one side, then the other of my tongue), and down again, until it ended at the toe where it had begun. No one knew what it could have been, or if I had only imagined it.
After the (vaginal) birth of my third daughter, I lost a lot of blood with a retained placenta.