Ok so my 7 week old has been shaking her head for awhile but not as much as today. I also noticed her gagging. She eats and drinks, weight seems good. Nothing abnormal other then shaking head and gagging. She doesn't seem impacted either. We looked in her mouth to see if there is gapeworms but couldn't see anything. So now what? Should I still give her wormer? She's been outside twice on the ground since she came home with me at 2 days old. What should I use if I worm her? Thanks!