AED side effects and withdrawal

Hello, need some help understanding since there is not a lot of publicly published studies on this. My step daughter had a couple, full convulsive seizures Sept 23, 2017. She was diagnosed with Non Epilepsy Seizures (NES) caused by panic disorder(after MRI/CT/EEG). We had also witnessed a seizure brought on by fear of blood being drawn, in ER. She was placed on Keppra in the ER. (Her mother has full med decision rights) We were noticing changes in my step daughter right away and gradually became worse. We were not being notified of her neurologist appts or what had been discussed. Mom always said, dr says she's good. We however noticed, behavior changes, frequent headaches, stomach aches, sore throat, slowed/slurred speech and dragging/ heavy feet in evening. We finally went to the neurologist on our own to ask the dr. questions. (Mom greatly interfered with our appt.) We went over her diagnosis, asked why she was put on medication, what other options such as psychotherapists, etc. In the end, they started to wean her off the keppra. 250mg each drop. We are now noticing dramatic withdrawal symptoms 2-4 hours before her next dose. Severe headaches, non reactive pupils(stay dialated), sends like she can't fully pick up her feet when walking, mixes up about 4 words in a row and doesn't notice, runny nose/ sneezing and stomach ache. They disappear after next dose. Mom doesn't notice and her symptoms are not being managed or discussed with neurologist. Is this normal? Do people with NES suffer more side effects or withdrawal from AED's?? Should we be concerned?