Epilepsy

Hi, this is my first posting on this forum. It is in concern for my girlfriend. She is 26 years old with no past of seizures. 2 nights ago i came home from work around 2am. When i was walking to our bedroom she was in bed yelling "no!no!no!" and moaning like she was havning a horrible nightmare. I went to wake her up and she snapped out of the dream and started snorring very loudly. After trying to wake her up for like 3mins she was like completely out of it. It was like she was very drunk. She couldnt walk straight and she was like droopy. I asked her a few questions and she answered most of them correctly but a couple she had a hard time with. I decided to take her to the ER. When we arrived we realized that she had bitten hr tongue during the incident. The doctor said it sounded like night terrors, but he decided to admit her anyway so they could test he for seizures,stroke etc.. they did a eeg,ekg,mri, catscan and chest xray. everything came back normal The Neurologist said he thin