My eyes are sinking into the eye sockets. Why does this happen?

3 months ago my eyes sunk into the eye sockets within some hours. Now they look strange and small. In advance of this I had struck the top of my head on a metal bar maybe one week before I noticed the sunken eyes. At the beginning it was very difficult to move my eyes, also i had the feeling that my upper eyelids fall down. For 3 weeks the eyes and eye sockets pain. Now my eyes doesn't close completely and not synchronously. I am very scared I saw an oculist but he said nothing to the symptoms.