you can try to alter a few things and see if you have any different effect. Take it first thing in the morning on an empty stomach, activate it with juice from a lemmon that you squeeze at the time, and only add distilled water. Drink nothing but water for the first 2 hours. Eat nothing for those 2 hours as well.
If you still have no symptoms I would move up to taking it 2 times a day.
Have you shared any with someone else and they did have some symptoms?