Why isn't food satisfying anymore?

I used to love food so much, cooking it and especially eating it. I used to be creative and invent stuff. Now food is just kind of bland. I am still hungry and I will envision a good dish, cook it up and dig in. And it's usually pretty bland. This has been going on for a good 6-8 weeks. Is that thing about our tastebuds true? How can I go back to loving food and getting that awesome satisfying feeling after digging in?