Rabbit question, please help now!?

Hi, I recently bought a New Zealand White doe (along with a buck). They are about ten weeks old and are a joy! The buck is quite friendly and is turning out to be somewhat of a house rabbit. The doe, on the other hand is shy, she doe-sn't ;) like to move around, and she won't eat much of her pellets or hay. I am new to NZW, so im not quite sure, but her face looks a lil' puffed... I think she might be ill or just shy? She is only active when I am gone, or the buck is with her. The breeder from where I bought her seemed knoledgeable, he has successfully bred NZW for 20+ years, but could have improved the size of the cages. Their diet (at the breeders) was purina (yuck! I changed them off that!) pellets, NO hay, gr, melons, roots, Ti leaves (anyone know if these are good for rabbits? They LOVE them, and seem to do better on them), and other veggies. I give them hay, pellets, papaya, dandelion, plantain (herb), gr, etc, all homegrown and organic (x-ept pellets). I do not have the money to see a vet, I spent all my money on the rabbits (my money that doesn't go to food, water etc)! Did I change food to quickly? Am I feeding something that would make them ill? Is ti leaves good for rabbits? The only thing they seem to like is dandelion, gr, ti, but they only eat a little bit of hay and pellets. The buck is quite healthy and energetic. I live in Hawaii, that is where I get Ti/papaya/etc. Any help would be much appreciated! And please, no one telling me money doesn't matter and I have to see a vet anyway! I need food for my dogs, cats, chickens, rabbits, fish and other critters!!