Is it normal to never have a good dream?

So I've just awakened from yet -another- irrational dream that my husband has stopped loving me.

But it isn't always about him. Sometimes, I'm being chased by monsters. Sometimes, the world's about to end. Sometimes, I'm being persecuted, hunted, or haunted.

I have nightmares about possession, traumatic sexual situations, and unfulfilled, ambling journeys.

There might be one or two "happy" moments, but I have never in my life had what constitutes a good dream. The closest I get is extremely surreal and neutral.

This just doesn't seem normal.