Donna.....You have not done anything wrong by joining Bob's thread. It's just that, even though it is about tongue cancer, it is mostly a discussion of his return for a "visit" to the forum after sev. years away.

Your questions and concerns will get better attention if you will click on "New Topic" in whatever forum you choose (General, if you're not sure....There are no hard and fast rules.).and start your own "thread," with your own title. Of course, you can always comment on someone else's topic. Always. But if you have a specific question or concern, it will definitely get better attention as a new topic.

Welcome. Keep writing and asking, and before you know it, you'll be answering other people's questions!