I am severely afflicted by Myoclonus.
Myoclonus is not a seizure - but don't get hung up on it NOT being one. I know for me, the myoclonic jerks can be life-changing, disorienting and even dangerous. I've hurt myself, others, destroyed things - just from the 'jerks.' I have hundreds of them a day.
I have known triggers to the jerks - reading, computer screens, (chess). I can't do puzzles or crosswords or things of that nature simple because if I try to do them, my myoclonic jerks og completely out of control and if I were to push it and ignore the jerks, I'm sure I'd fall into a full blown tonic-clonic(which I've had before.)
Mine effect my whole body. They usually hit the arms, which causes me to 'throw' things. It can disrupt my speech and cause me to stutter. These jerks are made tenfold worse if you're not getting proper sleep. Quiest way to make them worse is to go without proper sleep - everynight.
Through it all, know that she doesn't have tourette's syndrome, clumsiness - if she's unfortunate enough to have something like JME(Juvenile Myoclonic Epilepsy), like I do, she needs to know she has triggers. There's certain things she's not going to be able to do for any period of time without 'jerking' all over the place. Luckily, if she's like me she won't have many TC's, so that's a blessing. Usually when Myoclonic is involved, it's the predominant 'seizure activity.'
I guess again to close this up - they're not seizures but they need to be dealt with on the same scale because they can be as frustrating, dehabilitating and dangerous as partial or tc's, if someone's unfortunate enough to have myoclonus to that extent.
It's an extent I have it to - I hate Myoclonic Jerks, I hate the limitations they impose on me. I hate the fool I make of myself in public (I threw a plate of food at an elderly woman 2 weeks ago at a buffet during a jerk. In depth conversation causes me to have jerks...)
Your daughter has all my sympathies but with time, learning what her 'triggers' are, she'll minimize the jerks and live a completely normal life - you both have my prayers.
Blessed Be.