Does anyone here have daydreams so intense that they can't think about anything else?

I have been experiencing this for 3-4 years now. It used to be that I daydream only when I am bored lying in the bed but for the past year my daydreams have been becoming more and more involved in my life. I can't think of myself as anything but my character in my dreams. It lasts for hours in a day and is sometimes my only source of joy. I sometimes am so out of it that an hour has passed of me dreaming and I don't remember what I was doing originally. I honestly don't really feel comfortable in my real body either. I want to live as the person I see in my daydreams. Is there anyone who experiences this or has recovered from it? I am honestly really scared...