is this weird?
 

In the middle of the night I wake up and feel low! And then I cannot go back to sleep for a hour or so! Why is this happening ( why I am posting this at midnight)

When you're waking up feeling low are you checking to make sure your bg is at a normal level? It's also possible that your bg was on the higher side and is quickly decreasing therefore causing you to feel low and waking you up.