I have a dark spot on my tonsils back of my throat what does that mean?

Unclear: This is best evaluated by a physical exam. See your primary care, and ask if an ENT referral is appropriate. Hope this helps!

Tonsil spot: Hello. It is hard to determine why your tonsil is discolored without examining you. It may represent a crevice or crater on the surface of your tonsil that could be totally normal. See your ENT for confirmation. Good luck.