My doctor never explained anything to me either, useless!! The info is just what i have picked up on here.. i know its 15g per meal so roughly 45g for the day, although i will admit some meals have been alot less and some have been more than 15g, dont know if this makes a difference!! Hope this helps, i'm off to bed anyway am tired after my extra long walk around tesco hehe!! Hope you manage to figure this out, some fruit or cereal bars would probably be a good idea or even some muller yogurts!!
Hope tomorrow (or suppose i could say today) is a good day for you.
Take care