Horrible dreams :(

C
So, I'm 5+2 and since about 4 days ago I have HORRIBLE sleep, I feel nauseas & my stomach hurts while I'm  asleep,& dream that I miscarry. For days in a row. I literally wake up expecting to be bleeding. I have no idea what's causing these dreams but it's absolutely horrible & honestly starting to worry me. Am I a freak?!