wham, bam, hit me all at once when I'm down

This really sucks,  I am almost six weeks out from surgery and can't catch a break.  I just finally got over an upper respiratory infection and now I have the flu.  I am pushing the fluids really hard trying to make sure that I don't get dehydrated.  This really isn't fun as my husband is on the road and currently in Tennessee with a load that drops in the morning and then he will be off to Edmonton, Canada.  Thankfully my little guy is being good and helpful.  He seems to understand that mommy doesn't feel good and that he needs to help me.  I just want to cry.  How can I lose the pounds if I can barely move and barely get my liquids in never mind getting something to eat.  I just finally got all the extra pounds off from being dehydrated a few weeks ago and now this.  Geez can I catch a break.  I just want to be healthy again.  It doesn't help that weather changes make my arthritis flare up but then add this stuff as well.