Depacote side effects

Hi, my 18 year old has JME and has been taking Depakote for a couple of years. She seems to be very tired most days, although this has improved some since she began taking it at night. It also seems somewhat difficult for her focus. Most recently, she has been experiencing weakness since she began playing vollleyball. She has always been athletic; however; evern since she has been taking anti seizures medicines she does not seem to have the drive to play and she does deal with feeling weak and dizzy. Has anyone else dealt with these side effects or have any suggestions. She used to take Keppra but the weakness side effect seeme to be worse with that.

Thank you