Walking in circles

In the past month I started to have the feeling of walking in circles.
I have been reading many papers and, after my notes, I try to make
connections between readings and my research interests. I end up most
of the times near the beginning point. So I feel that I am too much
focused on seeing only a particular side. Maybe I am in front of a
tree and cannot see beyond it, the forest. As I am very interested
(maybe passionate) about a particular problem, I tend to see the world
in face of this problem and make many connections with this only. I am
biased to see the implications of everything on my particular problem.
Like there is nothing else... Maybe it's time to read something from a
completely different area.