O-M-G!! Someone Please Help Me!!!! What Should I Do?!?

My roommate, Gabriel for about a year, is 23 and I’m 24. I am a and she is I guess, “Free to express herself” or so she says. She is a very beautiful girl! Were both single and get along great, most of the time. We’re sort of seeing each other, but just talking at the moment. Anyway, for the p month or so she’s been very moody, getting very upset over minor irrelevant things and then she’ll start crying. She’s been having nightmares lately and I believe it’s linked with her sudden moodiness. Tonight we were watching a movie, sitting on the couch. I hadn’t realized she had started to doze until the weight of her body pressed against mine. She turned in her sleep snuggling along the side of my body, burying her face into the arch of my neck. I wrapped my arms around her, pulling closer. About 30 mins later I noticed she felt hot, like she had a fever. I called her name and gently nudged her. She woke up but was naturally still out of it. I got up and asked her if she was feeling okay? She shook her head no. I got a thermometer and checked her temperature, it was 103.5. Her cheeks were slightly flushed. I told her I would take her to see a doctor. And this is where it happened… she Freaked!!! “Noo, please don’t! I don’t want to.” She tried to get up knocking into me, and lost her balance. I grabbed her before she fell. She tried to push me, pulling away from my hold. Her eyes were huge, frightened, she was breathing very heavy and trembling. She began kicking and screaming at me. I didn’t let her go because I was afraid she would fall and hurt herself. I didn’t know what else to do! So, I shook her. Her head snapped back, and she looked at me confused and fearful. She was very silent and it was scaring me. I pulled her close and held her, stroking her back and hair, telling her sorry and she was safe. It felt like her heart was boring into my chest. I felt so helpless when she started to cry so hard! Her entire body shook with every sob. She began begging me, “Please, ple-ase don’t make me go.” I sat back down on the couch with her. And asked her why she was so afraid to go? I could barely understand her through the crying. However, she said she had a bad experience as a child with her family doctor and has been I guess traumatized ever since. I tried to get more out of her but she couldn’t go on. I held her trying to comfort her, until she cried herself into exhaustion. She still has a fever. However it’s 102 now. I am still a bit in shock. I am not sure what I should do. I have an awful, sickening idea of what transpired. But I will try asking her more when she is feeling better. However, I’m not sure how I should go about it? I love her and I care a lot. So, I really need to know what the hell happened?! I really need some advice…please, what should I do?!!