RSV not eating

My 5 month old was diagnosed with RSV earlier this week. She's been pretty bad but today seems so much better. Her fever is gone and her cough is minimal but still there. BUT I can't get her to eat! For the past 3 days she's barely eaten and today hasn't eaten at all. She had no interest. She's super fussy and nothing really consoles her except being snuggled. That's easy to do and I love it but I'm starting to worry she won't eat. I did ask the doctor and they said as long as she's hydrated she's ok. She's still having wet diapers so I guess that's what matters? I'm so lost with this.