Maybe you need a bit of rest. I had this too, years ago, didn't care very much. Came back with more appetite. Do something different.
If making pictures is your thing, you will notice that.
This is what I'd do. Fill your schedule with "other" things. At some point you will either miss making images or you won't. Either way... you win.
If you are desperate to get out and make a change, try limiting your self to 12 images on any given day (make them count!), and limit yourself to a lens that might not fit your idea of a given photoshoot. This will push you outside your comfort zone and may re-inspire you. You could also read a book by another photographer that sparks your interest. I am a nature photographer and absolutely love George Lepp's book "Wildlife photography." It's not a how to, but rather a book about how he made images and talks about his travels. I'ts a fun read.
You could also find a friend to shoot with. Seeing what someone else is shooting might make you realize that there is indeed something in front of you worth shooting. Plus enjoying photography can be contagious.
As alexanderferdinand inferred... if you re meant to return to photography inspired... you will. Just shake it up somehow.