Nathan does indeed have a concussion, and he's being a complete doofus and refusing to let Amanda do her magic healing thing. If Moira wasn't so busy, I'd have her shake some sense into him. Aside from apparently losing what little sense he had left, he's fine. Or will be.

No updates on Jono - he's communicating, and seems alert and well for a ball of energy. Hank, Moira and Charles are still with him.