Not sure if this is a NW issue or a feeding issue...
Up until a about a week or so ago DD was doing great, she's 7 weeks now. She would generally wake through the night every 3hrs, feed 3-4oz, then back to sleep. Sometimes her initial stretch she'd go 6hrs and a few times she did 7-8hrs (7pm - 3am). Things have seriously gone downhill and now after 2am she's waking every hour but refuses to eat.
She will generally make it from 7pm - midnight and feed them back to sleep, but then starting at 2am she will wake, I try to feed her but she'll will only take 1oz, then she'll wake at 3am and eat another ounce, over and over again until about 6-7am where she might go down for another 2ish hours. She fights the bottle the whole time and often just ends up spitting up pretty well everything she ate.
Tonight I tried to wait to feed until he 3hr mark before attempting to feed her (she is not actively crying just tossing and turning) in the hope that she would take a good feed, but no, she only took 1oz so she is no doubt going to be up in an hour because she's hungry and the process will repeat every hour. I just can't understand why come 2am she refuses to feed and if she is not hungry then why she is waking? At some point she has to be hungry but then continues to refuses to eat anything substantial, then continues to wake.
I know there is a regression around 6 weeks but if anything I think she would be increasing her intake, not flat out refusing it? I don't know what is going on but I've been surviving on 3hrs sleep the last week or so and I'm crashing.