Dear SB
Thanks for this. Yes, on average I've been flushing about once a week and I had been wondering if this was a bit much. It's always tempting to think that the next flush is going to finally sort things out. I think I'll try to follow your advice and have a rest for a couple of weeks.
On the point about breaking down the stones, I've been taking daily malic acid and drinking lots and lots of apple juice. A lot of people on this site recommend the use of Gold Coin Grass, a Chinese herb. I've had a look round on the Internet but there doesn't seem to be any source of supply of this herb in the UK. Does anyone out there know if it's obtainable here? I could always order it from USA or Canada but I'm just a little bit wary about importing weird looking pills and things as I don't want to worry the people at customs!