Anxiety about leaving home

I’ve been having severe anxiety about leaving my house lately. I don’t know where this all came from. I moved into a new home with a roommate a couple of months ago. It’s an older home, and for some reason I am terrified that the house will burn down while I’m at work. I have three dogs and the thought of them being stuck in a home that is on fire literally cripples me. It’s gotten so bad that I unplug absolutely everything in my bedroom before I leave for my third shift job, and I’ve been constantly googling the chances of a house fire or signs of dangerous wiring. I just can’t seem to ease my mind about it.