When will taste go back to normal?

I (22F) got my surgery on 2/27 and haven’t been able to eat much at all. The majority of my diet has consisted of oat milk, protein shakes, and the occasional buttered noodles, but very rarely because pain has gotten worse and worse every day.

Oddly though, the other thing that’s been standing in the way of me being able to eat is this disgusting taste that’s coming from everything I eat. It’s like it’s bitter and sour/rancid at the same time.

Has anyone else had the same experience? How long did it take to go away? I’m a huge foodie and not being able to taste what I’m smelling when i eat and it tasting like expired milk/battery acid is killing me.