Sounds like a lucid dream! : D

Reality checks are something I have problems with, I don't do them enough, and as a result, I only do them in extreme situations in my dreams, such as being underwater and being able to breathe or talk, but even then, I don't do them 100% of the time. I had a weird period where I would do reality checks randomly in my dreams, but never did them in real life.

They are pretty important, and as Brandon Heat said, they're the difference between having a great lucid experience, or just another dream (even though regular dreams can be great).