I felt a great emptiness inside, as if I had been searching for some glimpse, not outside but within myself, and had discovered that there was nothing to be found.

This is an empty feeling.

Without his son, life was void for the sailor.

I felt really empty after she left, and decided that when I met another amazing girl, I' d say goodbye to all the others and let her in.

You feel empty and sick at the thought of not being together.