Why do we own nightmares for?

I seem to own the same nightmare every dark and i can't stop myself from dreaming it, i was wondering if any medication help because i think i might suffer from a sleeping disorder as i sleep just about 13 hours a day. is that ordinary?Why do we own nightmares for?
Dreams are the random firing of neuron synapses contained by the brain, based on thoughts you own had consciously or subconsciously.
Many ancestors have returning nightmares, usually caused by some type of trauma. Did you recently (or ever) experience a traumatic, vivacity altering event?
The amount of sleep that is usual varies depending on age, form, etc. I think it may be better to chat it out with mental robustness specialist rather than wish medication. You can also make an appt next to your general practitioner to own a physical done.
the same light of day if you have more than 3 times sumthing resembling that is going on for to happen whats the nightmare roughly speaking??