Its just you thoughts which is making you feel empty. Past experience of same feeling is getting carried forward and you are still feeling the same thing again and again. There is reason for everything its just that some time we figure out the reason and some time we cant, and this failure of not knowing the reason for what we are feeling. Just accept the fact that some time we dont know the reason but somewhere back of the mind it is affecting us.
Next Steps
Consult a psychologist as soon as possible
Health Tips
Its a right time to consult and later on it might get difficult if not given attention