Did you read my post on my 5th flush? I am interested to know how to recognise what are new and old stones. I passed 60+ on this flush (done because of the same problems as Mikey) and they were all good big ones from 1/2 cm to mainly 11/2-2cm in length and diameter. The colours were more putty coloured than before but on drying out they were very dark. I have frozen them! For Mikey, I too have been experiencing these problems and this flush brought forth the best crop of stones yet! I do feel a lot of relief and much better in myself but my digestion does feel delicate so I am following Dr Cabot's Liver Cleansing Diet. (Thanks Juniper!) If the discomfort is too much I find a coffee enema is a great help in relieving the digestive problems.