New Seizures

Help! My 15 year old daughter began having "migraines" with dizziness, and photophobia approx. 8 weeks ago. She was tried on multiple medications and was eventually put in the hospital for iv meds and diagnosed with intractable migraines. After a week in the hospitla we were sent home on oral meds. The pain was about an 8/10. She did not improve and we consulted with a new neurologist. Three days after being discharged from the hosp. We were readmitted where we spent 2 weeks. We were sent home on several meds., one being depakote, a reduced dosage. Several days after returning home she began to have complex partial seizures and we were admitted yet again. She was placed on antiseizure medications and within 20 minutes was back to her old self. During all of this time she had been "flat". We kept thinking it was the all the medications. She was also placed on an eeg for 72 hours. She had plenty of "seizure activity" on the eeg. We have not been given a diagnosis yet. Hopefully we will later this week. She is on dilantin, depakote and topamax and has returned to being herself. However she does have some confusion (when doing school work or when she feels overwhelmed) and some photophobia still. Does anyone have any idea what diagnosis we may be looking at?