Not being able to enjoy tasty things must be horrible.
There's plenty of tasty things that don't involve condiments.
It's generally American food that has a lot of mustard, mayonnaise, ketchup, ect. Surprisingly, when I travel I don't need to be as careful. Most other cultures avoid strong flavors / textures like that.
I can't even put things like mayonnaise, mustard, ketchup, ect, in my mouth without gagging.
Needless to say, for me, any sandwich with those in it is the most vile thing I can put in my mouth.