Does inventing conversations in your head with a British man count as insanity?

Well... does it? I know it sounds insane, but ever since the dream I had last night, I've been having invented conversations with an imaginary British man. Is this the imaginary friend I tried to invent as a child coming back to haunt me a mere 4 days into my adulthood? I want to know if I'm a freak of nature or something (well, I know the first part's true, but am I more freaky than I thought I was?) so that I can do "normal" activities to counteract the "abnormal" ones I tend to do. Like yoga. That's normal, right?