Possible infection that has altered your taste buds. I was once sick with something that made certain foods taste like garbage. Other than give it time I dont know what to tell you.

Dear Doctor,
My Name is James Fernandes, I had troat surgery due to breathing problem in July 2009. I am ok now, but I lost taste for everything. Everything I eat tastes bitter including water. apreciate your precious advise at the earliest.
thank you
jf

I have a feeling taste slowly starts to come back after an infection has occurred.