Diarrhea is normal. Like PTree said, drink lots of water to rehydrate yourself. The pain could be from a stone lodged somewhere, or it could be from dehydration. You could try another flush in a week if you feel back to normal, or wait two weeks if you think you need more time to recover. I did my second flush after only 4 days after my first, both with good results. Some do two flushes back to back. Flushing is very flexible, just give your body time to recover and replace fluids, electrolytes, and remember to eat.