Redness and swelling under the tongue started 2 days back. Tongue underside looks greyish and looks dark than before. Is this normal? details in comment. - Quora
Anyone had a lump under their tongue? | Mumsnet
This squishy thing under my tongue.. : r/WTF
Bump on the roof of the mouth: 12 causes
Warning Signs Your Tongue Could Be Sending About Your Health
What Are Causes of Blisters in the Mouth?
Clear Bubble under Tongue: Causes and Remedies - HubPages