Stomach flu

My daughter caught her first stomach flu and this is really her first time being sick like this. All she wants is to be held and cuddle which I have no problem with but I am concerned because she’s had diarrhea for about five days now and she vomits sometimes but not often maybe once a day. I’m concerned about her lack of eating and drinking. I try to encourage water and pedialyte but she doesn’t want much of either. She’s not sleeping well at night just waking up crying and I don’t know how many times a day she says “poo poo again” 😓 her poop started off yellow and watery and now its more brownish but definitely still loose. She hasn’t had milk for two days she won’t go anywhere near her bottles. She’ll eat crackers sometimes and bites here and there of bread or bananas or yogurt but she really doesn’t even want them. Is there anything I can do to make this go by faster? Am I doing enough? She’s not severely dehydrated but she is definitely a little because she doesn’t have a lot of wet diapers. Especially overnight I only knew she peed bc the line was slightly blue but the diaper was practically bone dry. She still has tears when she cries which I try to not make her do. But I’m just concerned like how long can she go like this? I thought this was supposed to last a couple of days! I’m so worried about her.