DD is almost 2 and has a stomach bug. She has vomited 5 or 6 times in the past day and has a very low grade temperature (99-100). She didn't eat much yesterday morning and then refused lunch. I nursed her to sleep, and when I put her in bed, she woke up and vomited all over. At the time, she had no temperature (98.1) and seemed really cheerful. She wanted to eat her lunch, so I let her, and she ate a few bites. She was fine until the early evening when she had 3 or 4 more vomiting spells within a little over an hour. She asked for dinner and snacks, but we only gave her breast milk. Just before bed, she was begging for food, so we gave her a bit of fresh fruit, hoping that she could digest it quickly. She went all night nursing without vomiting, woke up early with a bit of a temperature, and wanted some water. She took one sip and vomited again immediately. I haven't given her anything but breast milk, but she keeps asking for snack, breakfast, water, etc.
I'm generally of the opinion that she should be allowed to listen to her body when she's sick, and I hate to tell her that her body is wrong, that she needs to not have anything but milk right now. She's not persistent when we say no, and she's not asking for things she can't see. It's that she sees something that looks good to her and wants to try some, but when she does, it isn't turning out well. What would you do? How would you go about reintroducing food and water? How long should I wait? I was thinking of maybe giving her some broth in a few hours if everything goes well.