Lots of weird dreams

The past 2 weeks I've had a terrible headache and I've seen so many longer dreams. They seem so real and I can remember them the minute I wake up, but most of the time I've fallen asleep pretty quickly again, and when I wake in the morning I can only remember small pieces. It's like my mind is going crazy. And the dreams are all the kind that I'm scared, stressed out, angry or depressed when I wake up.