Kitten Bad Breath

She is alone and the vet can not find the problem.Like every two weeks, she spent a playful kitten to an animal to feel sorry for you. It is bad breath, diarrhea, drooling and all she wants is to be next to you is. It is generally fun other wise. There were times, she can not even lift his head ... sad. Any help?

It is time for another opinion.
It seems that the symptoms are cyclical. You should do some research on your own to try to determine the cause.
Is there something she ate? Do you use carpet powders?
What happens every two weeks is not other times?
Is it going into the fertilizer in the houseplants? Are there any medications she may be entering?

I would take him to another vet when it is full blown symptoms of having. In this way, the vet can see for themselves what are the symptoms, rather than relying on your description.
And start racking your brain to what may be causing these symptoms. This could be the easiest thing, but until you identify; only get worse.