ShatteredSanity, it sounds terrifying for you. I'm so sorry.
If you're under the care of a therapist or doctor, perhaps you could contact them? These symptoms really sound upsetting to you and I'm hoping they can help.
I can't do much but reiterate what Pumpkinpiehead said: these are thoughts, not physical reality. You don't feel safe and your mind is projecting that fear into images.
Please reach out for help in real life too.
I am sending healing thoughts of safety and peace your way