Oh Kelly! I totally agree with the others get some REST girl LOL!!
I have only just started to get over extreme exhaustion, but I found if I slept for 12ish hours at night and napped during the day if I needed to I felt sooooo much better.

I felt like a serious slob cause Im usually up early and go, go, go, can't waste the day sleeping etc... so I resisted sleep for weeks but with DH and the doc pressuring me to take it easy, I rested when I felt like it and my body was so much happier for doing so. Now Im back to more normal sleeping hours but for those few weeks I think my body was really needing it.

I'm going to try to drink more water though, good idea!