But it does make sense that JFK's transverse process was traumatized / damaged by CE-399 around Z-222, and that his spaying his elbows outward and "clutching" his throat was therefore a neuromuscular reaction, not an "attempt to breathe."
Maybe. Maybe not. We can be certain that the hole through JFK’ s airway was a major impediment to his ability to breathe properly.
We are less certain that he sustained a fracture of the T1 transverse process but if he did, there was no displacement of the bone. So how sure can we be that this was immediately felt? Since the T1 transverse process extends outside the spinal column and does not protect any nerves, it is even less certain that a non-displaced fracture of the end of that small bone would have resulted in any neurological reaction, let alone an immediate one.