Preemie isn’t waking up for feedings.

Co

My child was born at 34 weeks 3 days, she is now 11 days old. Has made a lot of progress but the only thing stopping her is that she sleeps all the time, through feedings, and has to have breast milk through a feeding tube. She will barely eat from the bottle, and won’t from the breast as well. I know this is a milestone for them but she doesn’t even act hungry, never cries, I’m starting to worry something might be wrong. Has anyone else been through this with their preemie? Or know any info on it?