What a relief that Pidge's heart rate is much lower!! I know my cats get very stressed in the car so I'm sure it was a major concern on your drive home, especially when she started vocalizing. I'm dying to know what song you sang though!
I'm glad that you were able to share with Dr. Lee what has been upsetting recently and that he was receptive. It feels like things are getting better and better.

I hope you girls can get some sleep tonight. You both must be exhausted.