diastat

I am a new participant.  My 9yo daughter has a history of partial complex seizures.  After multiple meds and side effects over the years her seziures were well controlled until this spring.  She had an additional med added, zonegran,  which over the course of 4 months we believe caused her to have fears, scary thoughts and suicidal ideation.  This med was discontinued.  Suidicide thoughts went away, however, she just didn't seem right.  She continued to be fearful, out of the blue, and on further review we think the fear may be associated with her pc seizures.  Recently she had three extremely long seizures, three trips via ambulance to the hospital and after the 2nd an rx of diastat to be given if she had another seizure > 5 min.  She was given diastat after the third pc seizure @ 5min, after 5min called 911.  At 15 min she generalized to a tonic clonic seizure that lasted 25min.  My question on diastat...what are your experiences on how long it takes for diatstat to work and secondly has anyone experienced or seen someone post diastat become combative, out of control, terrified.  Her normal post ictal state has been a short conversation with someone with her then sleep.