Frequency of flushes after 5th?

I've been doing a flush every 2 weeks,five in all so far.
I was told by nutritionalist and I also think I read it somewhere,that after 4th or 5th flush you should space them out maybe 1 month or even 2 months apart.Anyone have any comments on this?
My nutritioanlist actually said I shouldn't do another flush until next spring,but I don't agree with that,as I still have stones coming out.

thanks
kj.. Tweet