Nightmares?!

Kaity
This is baby 3, and we are having a boy.  And I remember having crazy dreams with my first, but nothing this wild...
Over the last week, I've had nightmares about my first to children being taken from me in some way or another. (Having to hold them while they were shot, car crashes that I'm the only survivor, them being murdered in our new house, them being kidnapped.  Like, it's crazy) 
Please tell me I'm not losing my mind. Is anyone else experiencing these crazy dreams? What in the world could my mind be doing?! I literally was so distraught last night that I ran into their room and climbed into my toddlers bed with him.