Black specks on my tonsils that smear to my tongue

One morning I woke to find that my tongue was smeared in black.  It has occured several times now even threw the day, my mother looked in my throat and noticed I had black specks on my tonsils. I have no pain but in the area. But now my stools are black also.  I have had alot of pain, camping and some diareah, so i've taken pepto bismal for it, that may explain the black stools, but what about my tongue and tonsil?

[Carol A]

This may sound strange - but you probably should see your dentist.  It might be caused by periodontal disease.

Carol

[sophiart]

Thanks for your concern.  The first thing i did was call my dentist and no one had ever heard of such a situation.
My doctor wasnt sure either but thought maybe i was having acid reflux at night and the specks may have been coming up with it. I don't know. The problem though also happened during the day.

[footloose1]

Pepto bismal caused my mouth to become black, as well.  It was disconcerting, to say the least and not a well-known side effect.