I thought I had, but it was one of those gummy pieces of meat, the small bit was going down, and the larger one just followed without an invitation. Wasn't talking or anything when it happened. Very scary. The shoulder pain is right at the top of my shoulders and into my neck, not down where they may (sure, who am I to say?) have pummeled my back. And as a CPR instructor here, we are not taught back blows, only standing up or lying down abdominal thrusts on adults. As for anything else, a blur, then darkness. But I really did not want to qualify for a Darwin Award. Felt so stupid and helpless. And now so grateful. Sending out waves of gratitude to the universe at large.