S.H.
She needs to feed.
Normal.
Also, if she is emptying a full 8 oz. bottle, then she will probably drink more.
She is STILL 'sleeping through the night' ... because for a Baby, sleeping through the night, means sleeping for at least 5 hours straight. Which IS what she is doing.
Sleep, is NEVER static in a baby nor finite.
I do not know, of any person, who STILL sleeps the same way they did as a baby.
My kids as babies, woke a TON more than yours as babies. Since birth.
To me, your baby is sleeping good.
I never sleep 'trained' my kids.
Babies sleep and wake and cry.
It just is.
My kids, are now, good sleepers and nappers, naturally.