Dear doctor,I have been yelling in my sleep for, as far as I know, for about 15 years. I am 66 years old. I yell things such as "No, stop, help and moan in a scary loud voice. This is what I have been told. I do not have nightmares. I do not remember these episodes at all. I have also been told by one person that I chatter in my sleep. This is concerning to me because I scare whoever hears me. I take Lamictal for depression but the episodes were happening long before starting the drug. Help!