They may awaken totally paralyzed. They may experience dreams while awake that appear to them like hallucinations, and they may have what is called cataplexy, which is becoming weak or even paralyzed as a response to an emotion such as laughing or becoming angry. Sometimes people will wake up in the middle of a nightmare and feel very frightened. But night terrors are not associated with dreams usually. Often the people appear groggy and confused when they are awakened, but occasionally you can awaken someone from a night terror without too much problem.
Doctors are people and sometimes with complicated cases, they become worn out.
But often most doctors will keep their interest as long as the patient keeps interest in their problem. If your doctor does seem to lose interest after awhile, it may be time to change. It is never good to have absence of deep sleep or dream sleep. But most people will enter into all stages of sleep unless they are taking a medication that suppresses that particular stage of sleep or have a sleep disorder that prevents them from entering REM sleep or delta sleep. You need all of your sleep stages to feel normal and feel refreshed the next day.