Hi Nightowl Welcome
I have not tried Vyvanse. I have biplorII and add, so i'm taking lithium, adderall, welbutrin(small dose), and clonopin. Seems like it's helping. I work full time (flexible hours) and raise 3 children on my own. So I am somewhat productive... usually... you know how bp rolls.
I totally have spaced out on people while talking so I know what you're talking about. I also can stare at someone talking to me for some amount of time and then have no idea what was just said, except my mind was somewhere else.
Keep us posted, hope the vyvanse helps!