Every flush is absolutely different. I did my flush #22 last month, just a few stones came out. Yesterday I did my #23 and over one hundred stones were pushed many bigger than a garbanso bean. I feel great.
Don´t worry and be prepared for a next one.
In my experience a biler mover would help to restore your energy - Chinese Bitters, or Artichoke Tincture. These medicines help move the stagnant bile that causes many symptoms, among them tiredness.
Don´t be disappointed just focus on your next flush and it should be alright.