Is it normal to be on edge sometimes?

I keep being on edge that something tragic will happen. Whatever if it is being assaulted at night, an explosion in the kitchen, a burglar in the house that may harm me, or when my mom is silent and is sitting on the chair quietly, just looking at me; I felt like she is going to turn into a demon and attack me.

The last part, I may have watched too many jumpscare videos in my childhood.