If your death does not end your consciousness, then it is more probable that it was not begun with your birth, I suppose. In that case, where it has been is a matter of memory, although possibly heavily suppressed or shut-down memory.

An alternate notion is that the I-ness of a this-lifetime identity is merely an instantiation of a Great Pool of Infinite Consciousness, into which it dissolves at death. I do not trust this model much.

But the notion of an essence transcending body life-cycles raises a lot of interesting questions, including what the potentiality of such an essence are, and how far they extend, and in what dimensions, if that is the right word.

A