Hi, I'd like to help you with your question.
It seems odd that the doctors would put you on such strong anti psychotic medications when it sounds like you may have been suffering from PTSD, which is an anxiety related illness. Any anxiety related illness does not need anti psychotics. Anxiety related illnesses benefit more from medications such as Xanax and Wellbutrin. Even Ativan would be helpful.
Night terrors can be related to an anxiety and/or PTSD. It is one of the symptoms of trauma. But it can also be caused by medication. If you feel better off the medication, then it's best for you to do what works for you.
In a situation like this, it is probably a good idea for you to see another doctor for an evaluation. Sometimes you need to search a while before you can find someone you can work with who listens and helps you in the way you need. It is also a good idea to see a therapist, if you are not already. Talking to a therapist about what you have been through and ways you can cope will help you recover quicker and also help you prevent this from happening again.
Talk with your doctor about a referral. Or you can also search on line at http://therapists.psychologytoday.com/rms/.
I hope this has helped you,Kate