Never hold your breath during the exercise. When you have cleared a problem you will feel strong acceptance and relaxation. Your perspective will have changed. Emotions flip over into their opposites. Anger becomes acceptance.
Anxiety transforms into calmness.
Frequently after several clears or a major problem is cut through, you will experience your essence or a core state. You will have a great sense of being whole and feeling a part of the energy around you. Target any feelings at the beginning if you feel you're somehow different and won't profit from energy work. Pushing to make the Vortex work may slow your progress.