Should I Flush?

I've been wanting to do one for years - This, in the past, has been the only thing that has really helped me finally lose weight and get rid of toxins so that my body can kind of "kick start" it's own natural healing. Before I got pregnant three years ago, I did several and got out stones and lost weight. But since then, I was pregnant 9 months, nursed 2 years, and quit nursing last October, but have literally not had a chance to do one since then! I really really want to do one. I recently did a bunch of colon cleansing (but stopped for a month due to a few trips/vacations) and then have been juicing. But I have a few nights next week child-free that I can flush.

so ...

1. Should I do one?
2. Is there a better way to do one? I know Dr. Natura's site makes a case for not flushing but "liver cleansing" - but I seem to really like flushing and getting those stones out.
3. What protocol can I follow so I know what to do in the week leading up to it?

Thanks.