Hi Lisa P. The taste perception distortion seems to come and go now for me. I've actually had a few days lately where a glass of red wine tastes like red wine and not red wine vinegar! I was resorting to smelling only and then letting my brain fill in the blanks for the taste part. Lack of sweetness means you lose so much in terms of overall flavor because everything is out of balance - you're right, nothing tastes right either too acidic or bitter. How about the taste of toothpaste or mouthwash? Ugh.
At one point, I also had a bad sort of serumy taste in mouth which made me borderline nauseated. Altoids to the rescue...I was semi-addicted to them for a while. They did the trick. Good and Plenty was also effective (and only $1.00 a box at WalMart).
Have you tried a ibuprofen to see if that helps? Many people get relief of various symptoms by using it. Hopefully your "sweeties" will return to you at some point. Meanwhile your "taste testers" have an important job.
All the best, Helen