However this information is a little misleading – in the case of tonsil stones, usually the smell is contained within the tonsil stones themselves. Unless it actually breaks open in the back of your throat, this odor is not usually released.
However(and this is a big however), if you are creating these tonsillar stones, and thus the foul odors of methyl mercaptan and hydrogen sulfide, then you have the exact oral environment that is most conducive to bad breath. This environment exists in the back of your throat and tonsils.
Thus, people with tonsilloliths usually have a bad breath problem – either occasional or chronic. This is because the exact conditions that cause tonsil stones (post-nasal drip, dry mouth, white tongue, excess mucous) are also very likely to cause halitosis.
For more information on halitosis and all of its causes, I highly recommend taking a moment to download a free ebook called The Bad Breath Bible. This highly informative ebook, written by Dr. Harold Katz, tells you everything you need to know about breath issues, and how to stop them.