There are so many things going on here, I think it must be a routine issue, or a developmental issue.
My LO slept through the night (9-10 hours) pretty consistently since she was about 3months old. We were on a 4-hour EASY for about a month between 4.5mos - almost 6mos. Even on vacation, she was napping pretty well and sleeping at least 9 hours without waking to feed (we have never done a df)
We got back from vacation a couple of weeks before she turned 6 months, and she has not slept more than a 5 hour stretch since, and she rarely naps more than 1.25 hours, is waking early, and hungry all the time. I can't get those naps to stretch and we're always on the edge of OT. Sometimes she takes 3 naps, all between 1 - 1.25 hours. Other times she will take her "catnap" in the AM and make her other 2 naps longer. We used to average 4-4.5 hours day sleep, now we are lucky to get between 3-4, and it makes her cranky.
The first couple of days, I thought she was messed up from traveling, but it's been 3 weeks now! I thought growth spurt, then time to start solids. I dropped back to a mixed 3/3.5hour feeding schedule and this is day 5 of cereal. I'm also pumping and taking fenugreek to boost supply. Any advice from the routine perspective would be helpful!
Times are approximate, of course
Wake 6:15
E 6:45
A 7:15
S 8:30 - 9:30
E 10:15
A 10:45
S (put down 11:30 happy talk till 12) 12:00-1:20
E 1:45
A 2:15
S 3:45 - 4:30 or 4:45
E 4:45
A Bedtime routine
E last feeding 6 or 6:15
S 6:45-7:00
in the "good old days" she would sleep till around 4 am, eat and back down till between 6-7 am, which worked better for us than doing a dream feed. For the last 3 weeks, she's been waking to feed in the "dream feed zone", between 10-12, then again between 2-4, with early wakings between 5-6.
I'm trying to get more calories in the day, but how long will it take for that to start correcting the nights? I'm afraid we may have already crossed the line into habit.
Recommendations welcome!