I can't even sleep in my bed upstairs!

My baby is 10 days old and I think she has bad reflux! She's screams and screams when I give her a bottle. Iv got some gaviscon but it's not working. Because of the screaming I have to sleep downstairs on the sofa with her because I have a 2 year old upstairs. She will get woken up! I don't know how long I'm gonna have to sleep down stairs for!!