Everything will be OK, you might want to look into a different diet. Often Hyper children have a high sugar diet, and some would say that hyperactivity is often misdiagnosed and prescribed medication when a change in diet would have help all along.
ODD can cause kids to be very defiant. (as you most likely already know) I would say, from my experience, that it has a lot to do with her conditions. Try to remember the ABC's accadence, behavior, and consequence. (as in what starts it, what is the behavior (bad) and what is the consequence) Then you need to try to change the behavior into something more accecptable.
Hope that made sense- sorry it's late!