Have your dogs been seen by a vet? BTW, my travel insurance covers not just family members, but also family pets if they are sick or suddenly pass before our travel. I had no idea that our plan covered this; I found it quite by accident and, thankfully, have not had to use it for the dogs. I'm the one who got sick and had to cancel a very last minute transatlantic cruise last year (stroke) and the day before we cruised this past Feb, we had to cancel when hubby got Covid.
Good luck!