third flush..not as exciting- but is it a good sign?

did my third flush last nigth- but this time go very few stones out and very small ones compared to last two times- also saw some white rixe like things- wonder what they were- ahve heard others taling about it but don't know what they are and wonder why there were so few- just aabout 3 or 4 of them.

Why are the stones so few this time? Could it be that the stones have actually reduced or could it be because i flushed just 10 days ago?

Would appreciate any comments / inputs. thanks Tweet