Welcome to YT! Can't wait to see photos of your new baby.
As for going to the groomers, I think they need to have all their shots first. Has he had them all? As for the reverse sneezing, yes it's totally normal and if you do a search, you will find all kinds of threads about it but I guess I would caution you to also check with your vet since collapsing trachea can sound very similar. Good luck and hope you enjoy your baby as much as I enjoy mine!
