Hi my name is Ashika. I have a female German Shepard who is 20 weeks. She refuses to eat. I have no idea what to do. Please advice.

Eating problems are common in young Shepherds. Common enough to have a sticky on it, https://www.askmehelpdesk.com/dogs/i...tml#post254171 It should help you sort out whether you need to see the vet or just feed her less.