I also experienced paranoia when I lived in a big house. I have bipolar 1 with psychosis and I thought an evil man was as hiding in my home. To harm me. Fortunately, meds helped. I also have anxiety disorders that exacerbate things.

I've experienced some agoraphobic symptoms, perhaps like OP. I stay in my bedroom a lot, under times of stress. I tend to isolate even from family members. I need the solitude and lack of stimulation. I have had success with meds, but I still struggle. I'm a homebody but I get to my pdoc appts. I haven't been to a shopping mall in years.

OP, hugs to you. Do you always isolate in your room or are you usually OK with other areas of your home? xo