19th day up some ounces

Okay, again I'm depressed....I gained some ounces. Not sure why. Well, come to think about it I was out in the sun again for about a half hour....maybe its just water...but I still want to cry. And, tonight will not be any easier...here is my dilemma I got up this morning at 0400 and worked until 3:00.....now I am working overtime tonight at 10:30 until 4:30 in the morning so I am not going to get any sleep which I am dreading because I know it will make me retain water and I am afraid I will be hungry. Should I eat some extra protein before I go....I can't be starving and work...it just wouldn't be good...help...!