Worried

My mum isnt well. Shes had a bloated feeling in her stomach for nearly 2 weeks. She cant eat and has trouble laying down. Shes been to the doctors countless times and her GP said it was a grumbling appendix. Well last night my mum was taken to hospital cos she was in agony. They kept her in overnight and let her do home today. They still dont know whats the matter with her!!! Why have they sent her home when shes in pain and no one knows whats wrong?? I am absolutely furious and worried to death!!!! Apparently they are gonna make an appointment for her to have a scan. They should have done it there and then!!