It could be any number of things...I would discount the crying and barking, she needed to pee...it sounds like you're reading into it way too much. She may have simply smelled an old snack in your purse. My current dog is not much of a chewer at all...infact her favorite toy is a beanie baby cat. She is, however, a garbage hound if left to her own devices and chewed through a reusable shopping bag and a few other items to get to a tupperware that had held my lunch the day before. I'd even rinsed it so the smell couldn't of been tremendously strong. Whatever it was, was worth her trouble though. So who knows, it could of been food or other smell that attracted her.
The dog probably knows you're moving, and that can be unsettling. It can miss people. I do want to note that some dogs just 'feel sore' after vaccines, which my vet said is fairly normal in small dogs. Some need a day or two to bounce back.
You can't prepare a dog for 38 hours on a plane. You need to be calm and collected and act as if everything is normal. Right now you sound really stressed and it's only going to add to your dog's stress level.
The dog probably knows you're moving, and that can be unsettling. It can miss people. I do want to note that some dogs just 'feel sore' after vaccines, which my vet said is fairly normal in small dogs. Some need a day or two to bounce back.
You can't prepare a dog for 38 hours on a plane. You need to be calm and collected and act as if everything is normal. Right now you sound really stressed and it's only going to add to your dog's stress level.