Morning Sluggishness??

I am 6 days post op and generally feeling pretty good, except for when I wake up in the morning. I feel feverish and just overall sluggish. Does this happen to anyone else? Are there any tips to avoiding this? 

-Nikki

I am 7 days post op and feel the same way.  As soon as I start getting some water in me, I feel much better.  Maybe we feel this way because we have gone for several hours withou****er?  I am not sure how to avoid it.  Hopefully someone can provide some tips.