I'm so sorry for what you're going through. Generally, a provisional BP1 diagnosis plus an antidepressant-induced psychotic mania would be enough to confirm BP1. Some psychiatrists who are very conservative with the BP label may still hold off since there was a medication involved in the mania--mine did that and only diagnosed me when I became manic when not on an antidepressant--but for most doctors, your son would be considered BP1. As for the fatigue/zombie feeling, oh my do I remember that. It's probably a combination of the meds and coming down from the mania. I remember feeling like I'd run a marathon for several weeks after my mania ended--I was so achy and tired I could barely move. I was out of the acute mania after a couple of weeks, but it took a long time--like months--for all of the symptoms to resolve. Hang in there, though--things may look bleak now, but they will get better