I Saw Someone I Don't Like

I live alone in a small two-bedroom apartment. Sometimes, at night, I fear there is a dangerous someone or something in my apartment. I check out all the rooms, closets, look under the bed, etc., but the fear is only temporarily alleviated. Perhaps the dangerous someone, while I was checking out the living room, sneaked out of the master bedroom and moved into my small front bedroom? I can t see all of my apartment at the same time - too many rooms and nooks and crannies - so I am never sure... Fear At Night When Home Alone
https://www.myptsd.com/c/threads/i-saw-someone-i-dont-like.64809/