Yeah, I hear ya on the staying asleep. That is anxiety, my friend.
As far as you trying to figure out if this is MLC or not. Let me save you some time.
It doesnt matter. Really and truly. It doesnt matter. If you are hoping it is MLC because then there is a chance she will come out of this, you are standing in the way of your own journey because then you are looking to someone or something else to move this along.
And it cant be moved along by anyone or anything but you. When you think this way, you are looking for her to change, decide, get through the MLC.
And sorry, but, thats not how this works. So, it doesnt matter if she is MLC, ADD, or XYZ. You still have to walk this - for you.
So, stop thinking about what she is and get back to thinking about you. Who cares what the hell her problem is?
Talk to a doctor about your sleep problem, move forward in the journey and let her blow in the wind, ya know?