Too bad you feel that way, 5 flushes is usually not enough. Why don't you spread them out a little bit, may be 3-4 weeks.
I have a calcified stone, so far I have done 37 flushes in 2 years and yesterday I had an ultrasound and my stone was still there. The only thing I always get out are soft green stones. I am waiting for my official results and hope that at least I have not created new stones.
May be you can forget keeping track and do it like nothing special and if you see some floaters at least you know you should keep flushing. For us regular flushers it is just another day.