My H has been at work until after 1am every night this week. It's stupid, but I can't fall asleep until he comes home. I have no idea why. On top of this, Ollie has been waking up every night at 2 for about an hour, for no reason. So I'm basically getting 3 hours of sleep a night.
I'm not sure if lack of sleep can give you a "high" of sorts, but I've had a ton of energy. Made dinners, got lunches ready, ran 3 miles with the jogging stroller, been a boss at work. I'm going to crash hard, aren't I?
I will say though, I truly don't know how single parents do it. Or parents with a partner who travels a lot for work. I think Im getting through this week by reminding myself that there's a light at the end of the tunnel!