If you were on any antibiotics, it's no surprise to me that your tastebuds aren't 100%. I had and impacted wisdom tooth taken out and the meds killed all the lovely little micro flora in my mouth for a couple of weeks. Everything I tasted had the flavor of metal shavings.
After about an extra week off of the meds, everything returned to normal.
I suggest for the time being you finish off that Cuvee Z I know you have.
I hope all returns to normal shortly for you.