Most stones are waxy, they clog up your liver so keep flushing and see how you feel.
You had a successfull flush. I would do at least 8 more times and then see how you feel.
Also read the FAQ at top of page and you might find some more answers.
Don't worry, just be thankfull that you had no calcified stones according to the US but you still might have a clogged up liver so keep flushing.