Suddenly reject solids

My 8 m/o has been eating solids (purée) well since 6 m/o and has been eating through BLW too, but she suddenly rejected it since a day ago and refused to open her mouth and will cry when we try feeding her. It’s so frustrating, what’s happening??? Will it ever get better?? Recently she lost some weight too as she contracted herpangina from her ifc, and she didn’t want to drink milk. But now she’s able to drink as per normal. Not sure why she rejects food totally now.