Sleep walking?

Not looking for medical advice, just experience. I guess I have started sleep walking at 22 years old. I’ve never slept walk before that I know of. I used to be a very light sleeper and didn’t snore until about a year ago I started sleeping really heavy and started to become harder to wake up. Lately, my husband keeps telling me that I’ll wake up and go to the bathroom, talk a little bit, and go back to sleep. He even told me that we have woken up and had sex a few times and I don’t remember any of it at all. I do have a doctors appointment. I’m just confused about it and wondering if anyone has any similar experiences.