Anyone have a cat who explosively poops in fear during car trip?

Tilly came to us as a 3 yo "stray" who was chipped and spayed. Incredibly friendly and loving and sweet as can be...even growls in protest at removal from laps because she is the quintessential definition of a lap cat.

During any car trip she has diarrhea sometimes more than once in the carrier. Have tried double dose calming treats plus feliway etc...and still no relief. It is pitiful.

Thankfully she does not have to be in a car often...but we are moving in 3 weeks and I would like to see if I can help her.

She is piteously cooperative and grateful when I clean her up afterwards. She isn't fnd of the carrier itself but is quiet when car is parked/stopped. If in motion she just mews heart breakingly...and poops all over.

Vet seems nonchalant when I brought it up. Said some cats just do that.

I often wonder if she is terrified of cars because of her past...a 3 yo chipped and spayed family housecat doesn't just turn up without attempts at finding her. [emoji]128528[/emoji]

Basically asking for any tips or advice, or even just your cat carrier poonami stories.

I once had a cat who became very anxious during frequent 4-hour car trips, and my vet was able to give me some medicine to calm her down, sort of like a motion sickness pill. Ask your vet for something similar - it could be your cat actually has motion sickness. If you have to, go to another vet. This is something that shouldn't be casually dismissed. It's distressing for your cat and distressing for you.

I had a cat that used to crap itself and start foaming at the mouth whenever I put her in a travel box / case. For some cats, a light sedation is required, but it's worth trying the medication on your cat safely at home first to ensure the dosage does not make the cat ill / achieves the desired level of sedation.