Sickness of heart

I don't think anything could make me sadder than seeing my little daughter sick. Breaks my heart...
She hasn't been able to keep anything down for 24 hours and it kills me to see her so helpless. Even through it all she hasn't cried much, has slept well and has been much more of a cuddler. She must get this strong resistance from her mother's side. I think I would be such a whiner in her case.