Anyone else? Urinating more then lose

I notice that the night before the scale goes down in the middle of the night I am up urinating a lot. I know that when I wake up I will have lost. It's weird. It could be a pound or a big #. Common?

1 more pound to CENTURY CLUB!!!

I've always found my scale shows my lowest wt right after I wake up.  You'll likely urinate more as a post op, as you should be consuming a lot more water than you probably drank prior to surgery.  DAVE