For a while now I have noticed that my son has bad breath, hes not even 2 yet. The past week he is sleeping a lot more and when awake grumpy and lethargic. His breath almost smells fishy. Does anyone have any idea what this could be? Is he ill do you think? Ive not taken him to hte doctors because hes not had a temperature or anyhting. just wondered if this rang any bells with anyone with similar experience.