Meftal spas reaction with divalproex.

Hello doctor, I am currently taking Divalproex for seizures. Today during my exam, I experienced repeated sudden jerks in my hand (almost every minute), and I was fully conscious but unable to control my hand or continue writing. Previously, I used to get only a single occasional jerk, but this was much more frequent and intense than before. I had taken Meftal Spas about 1 hour before the exam for the first time, and I also felt slightly drowsy during the exam. I’m not sure if this contributed. Could this be a change in my seizure pattern or trigger-related? Do I need a dosage adjustment or should I avoid certain medications like Meftal Spas? Also, what precautions should I take during exams to prevent this from happening again? Thank you.