Hi Anita, I had a similar thing. What started as
a "canker sore" turned into hard, sharp things.
This started 3 months post radiation.
A couple of doctors said to leave them alone
because they didn't want to risk bone infection
and the gums not healing. An Oral Surgeon who
sees alot of cancer folks saw the damage they
were doing to my tongue, and removed them.
New ones would grow back, and a couple got kinda
big. He kept removing them, and the gums healed
just fine. He said they would go away, and they
did. He said they were "bone spiculas", kinda
like a bone spur. O-O