I used to be really interested in Poetry – but I lost this interest – without knowing that I lost it.
Now I am wondering why.
More interesting things were going on, that was certainly true – but that is just a fact, and explains nothing.
Everyone else, or nearly everyone else, lost interest in Poetry – without being aware of this.
But that is hardly unusual. They lost interested in nearly everything else, as well. Without being aware of it.
You could say the loss of poetry is part of a much larger loss – nearly everything.