Fraid so.
(Where's Charlie? She loves a good poo thread
)
And yet the first time I did CD, it didn't bother me at all. Strange. My innards must be getting lazier with age.
I probably don't need to say this, but don't start taking a fibre supplement until you've got yourself unbunged with your laxative of choice.
Sounds like you might already know what works for you.
Remember too that you won't necessarily have the bulk moving through that you're used to anyway - you're eating so much less. So a reduction in the number of times you go per week is to be expected.
Things to try so it doesn't happen again?
Fibre89, available from your CDC (Fibresure is the same sort of stuff, available from most supermarkets / chemists).
Others swear by Psyllium husks (available from health food shops).
Still others use more pharmaceutical sort of things like Movicol - very good, but expensive (worth seeing if you can get some on prescription from your GP if you've got a friendly GP).
And of course, it helps no end to keep glugging the water...
Hope you get unbunged soon!