I'm happy that you have asked me to assist you with your child and hope that you can benefit from my many years of helping parents like you.
An NG tube avoids the need to wake your baby so that you can safely deliver the needed amount of calories to help her grow.
No, you don't need to wake her since there is no risk of aspiration while tube feeding. The frequency of stools is really not important either as long as they are soft. Most babies eat every 3-4 hours for the first couple of months and poop nearly as often initially. This changes over time and the stools slow down, plus with tube feeding they swallow less air and have less gas!
Yes, so that she learns to suck and swallow in a coordinated way.
No. If she goes more than 3-4 days you can give her a glycerin suppository to stimulate her.
I doubt she will go that long and what you are describing is common and nothing to worry about.
It will take a few days for her to adjust to home but don't make it too quiet around her as she is used to the noises of the nursery.
Hang in there for a few days and she will settle in a bit and try to stick to a schedule for her feeds, which is something a baby being bottle fed on demand can't stand.
Did you have any other questions. Chat will kick us off if neither of us posts anything for 4 minutes.
Yes since that is an advantage you have not having to feed her when she cries but keeping her on a schedule and "tanked up".
You are quite welcome and good luck.
I'm online most of the time so feel free to ask for me anytime.