Kind of weird...

sorry, I know I've been posting a lot lately.

Does anxiety have a uh.. I don't know how to explain it... I guess is it a symptom of anxiety to feel really... on edge, constantly? Anytime I am alone in my home... I always feel like someone is standing outside my door. Or I hear keys jingle like he'll open the door any second. And the worst, I feel like someone is standing there, in the doorway, in the closet, hiding in my bathroom, watching me.... It's so hard for me to sleep when this happens.... and it only happens when my fiance isn't there, I sleep right away when I know he's in the next room.... and my anxiety somewhat goes down

am I going crazy??