I have noticed Brynn's eyes get rather red at times...she doesn't act at all like it bothers her, and is her normal self, but the whites of her eyes are red. However, they don't stay red. I contacted her previous owner as she has owned Brynn as a puppy and has stated Brynn has never had cherry eye, in fact her vet records show she has been very low maintenance for a bulldog, but the previous owner stated her eyes often turn red when she gets very tired. I noticed they were red last night before she climbed in her crate for bedtime, and this morning they were white again. Is this normal? Or should I be concerned? I don't want to skip over something that could potentially be wrong. 

Thanks for the help/advice!
Thanks for the help/advice!