Thanks for the replies everyone. I just saw my pdoc who agrees that yes, my sudden drops (for just a day) are not normal for bipolar. I brought up the borderline idea and she immediately dismissed it (which I feel is valid); She says my depression is so deep (but not consistent) that she still feels strongly that I have bipolar ii, but that I got thrown all out of wack by ADs, and that I need to adjust and allow my brain to settle and also get accustomed to lamictal.

I'm getting a new pdoc next month (insurance is changing) so I guess we'll see if she's got any insights.

Anyway, thanks again.