Bad taste in mouth after eating when dehydrated?

I am 3 weeks post op and struggling really bad to get enough liquids in. Anytime I try to eat something I get a really bad taste in my mouth after. Did anyone else deal with this? 

You may need to just bite the bullet and see the doc for an IV of fluids.

If that taste is metallic, then it may be ketosis, which is when your body is burning fat for fuel.  This is a good thing, however dehydration is not.  You need to hydrate, or you could go from bad to worse.  Fatigue is first, dizziness, and can also even lead to kidney stones.  Force those sips.  Try different flavors and temperatures, and everything wet counts. 64oz is your minimum goal right now, starting NOW