Widgets, apart from your mood, do you have depressive symptoms? Fatigue, oversleeping, heaviness of the limbs, concentration problems? Sometimes when I'm depressed I get numb rather than sad or irritable. I've heard of others who have had similar experiences. So, maybe you're depressed.

I hope that you find some relief soon, and I'm glad you're no longer mixed. I understand, however, that numbness can suck too. What you're describing is a living death.