Loth,
I would think with the hx of bipolar in your family it would be a high consideration.
Having said that, it's in difficult children best interest to rule out any & all physical conditions (i.e. seizure activity).
For my own seizure disorder, it took years to pinpoint by EEG the focal point of the seizure activity & the best medication to treat it.
So many times, with the tweedles, diagnosis's were confirmed or ruled out by their reaction to medications & ongoing treatment plans. If something didn't work, we moved onto the next theory on the table.
I'll be keeping you & your difficult child in my thoughts as you try to sort this out. :warrior: