So I'm not sure what I'm doing wrong but the scale is not only not going down but I've actually gained almost five pounds in two weeks! I track my food in my fitness pal and I've started light weight lifting over the past week. I also started back to work, could it really be from not getting enough fluids??? So down hearted and frustrated

Muscle weighs more than fat. You could be still losing fat, but gaining muscle which nets some added weight. Plus the added weight training demands more calories and carbs. You might have to eat more. If everything is on track, just hang in there and the weight will drop. Plus adding more fluids can't hurt..

If your lifting weights you may have to track by body measurements too. I need to do this myself.

Get more fluids in & try some cardio. That worked for me. Good luck & hang in there.