Emotional changes with pregnancy

Ichigo • I have one daughter. I'm also pregnant with my second. Unmarried.
So, I've managed to scare myself. I feel like something is trying to kill me. Paranoia. Which is normal sometimes. But not to this extent. I'm afraid of turning off my lights and I jump at the slightest noise. Plus I have my door off of the hinges then turned off the lights. The door fell. I screamed and I'm still shaking. This was about 5 munutes ago. Is that normal? Like a change?