Hi D.. I have to agree with the first response from Amy who describes "Night Terrors" pretty well. My oldest boy had Terrors and Amy is right, the child very often cannot be awakened during the episode and will not remember having them. Therefore going to bed is not a scary thing because they have no recollection of the night prior.
Sounds like your child is clearly having nightmares.
I am the type to always go to the experts. When my son started to have issues, the only expert who made sense was Dr. Farber. He wrote a book about How to help your child sleep. It's a great book that is a very fast read and helps you understand sleep patterns in general, and then help your child through some troublesome things like nightmares, terrors, bedwetting, nap schedules etc.... It is a must read! My neighbor gave me my copy and it's been a lifesaver in our home! I strongly recommend it!
Good Luck!
C.