Thanks to everyone. I was kind of kidding about the lack of response, but not entirely, so thanks for the reassurance Christine.
As it turns out, the bleeding is nothing but the result of doing something (brushing the tongue, eating french fries or ?) to a very tender tongue. The ENT looked puzzled and asked why we were there, as he'd just seen us on Sept. 8. My response was that we didn't want to show up later, have it turn out to be something bad, and be asked "why didn't you come in???". He thought that was quite funny, and said it's not cancer, nothing to worry about.
Good thing he's got a sense of humour. Anne