To go to physio when I haven't done my exercises?

[embarrassedonthursday]

I have physiotherapy this afternoon (dodgy back) but I haven't done my exercises. I have good excuses but I still feel like a naughty kid who hasn't done her homework. Especially as it's on the NHS.
AIBU to go and just tell him the truth?

Yep, he'll know anyway if he's any good. And you won't get better unless you do them!

Do the exercises now, before you go! Then at least you can truthfully say you have done them and mumble a bit about not quite as many as you like.