I have a deer headed ch is it normal to see his bones he is a very picky eater but he does eat good.

What is a "deer headed ch" ?

Probably chihuahua.

And what does the vet say? Up to date with worm and flea treatment?

Yes he's been dewormed by a vet and he has no fleas and he's a deer headed chihuaha

So what did the vet say about his weight? As long as he is healthy and up to date, feed him a good quality chow. Some dogs will need more or less than the recommended feeding guide on the bag, it will really depend on her activity level. Chihuahua's are smaller framed dog and shouldn't be over fed.