After sleeping with cats for 50 years I finally became allergic to them. My eyes and nose would itch and I awoke with a headache. If that happens with dogs I don’t know how I will manage.
I don’t know if it is true, but somebody said that those who are allergic to cats won’t be to dogs and vice versa. One person I know is apparently allergic only to short haired dogs, not long-haired.