Hi I have no real insight, just comisseration. I had a cough that lasted ~ 6 weeks and ended with me having a cracked rib/torn cartilage. It sucked. My friend told be to get tested for pertussis- she said that only 50% of pertussis cases actually have a whoop. The whoop is just a big inhale of breath at the end of a cough. I certainly did THAT, but I wouldn't have classified it as a whoop per se.
Hope you feel better!
Hope you feel better!