Consider this:
at its core, a ghost is typically described as little more than a restless spirit.
Given this description, it's not too much
of a stretch of the imagination
to suggest that you don't have to die
to be a ghost.
After all, things change every day.
It would be concerning if you didn't feel lost or anxious at some point. The question then becomes "what do you do if you feel this way?" The answer: remember who you are and all it took to get you to where you are today.