i nursed my then 12 month old every 2-3 hrs ALL DAY and ALL NIGHT at that stage in the game. on my liquid phase i drank the bullets (found at GNC but i'm not sure if they have/had whey Protein in them). i also made a lot of just fruit smoothies with fruit juice/ice/fruit (you can sprinkle Protein Powder too).
i just weaned my son a wk ago (at 19 months) and i had my lapband surgery august 18th. i did fine nursing and complying with the new way we have to eat! good luck!!!!