I was doing low sugar not very well - getting incredible cravings and eating stuff like four slices of PB&J on bread in a row! So I've gone a bit cold turkey.
Yep, sugar makes me ache and it makes me sooooooo tired. This diet is great!
There are lots of books out ther on GI diets. I found a little one in a bookshop that had synopses of the main GI diets in this country and then a directory of common foods and their GI rating. That's been very helpful - I found the notes (and the diet!) in Fibro: The 1st Year quite confusing.