As a general rule, I don't believe in babies forming 'bad habits', rather they become used to something and find comfort in that.
My breastfed DD is 15 weeks old on Friday (she was 2 weeks over due) and for the past month now she has been waking every 2 hours during the night. She doesn't wake crying, she just wriggles around and bashes her legs on the bed. I usually leave her to see what happens, but eventually she will start whinging (she isn't much of a crier).
I've tried settling without feeding but it doesn't work and she seems genuinely hungry. After a short feed she's back to sleep without me doing anything else.
During the day she is not that interested in feeding. She comes on and off the breast to look at me, or at whatever is going on...even if it's shadows in a dark bedroom . She also likes to arch her back and almost fall out of my arms while yelling at me. So I give up and try again later.
Prior to this, she would sleep in a 5 or 6 hour block, then wake every 3 hours after that for a total of 12. She'd feed nicely during the day every 3 or 4 hours without any issue.
I understand BIG changes happen around 3/4 months. I know all babies are different. I know you can't change a baby. I don't expect her to speed up her developmental milestones or to go back to how she was for my convenience, I guess I just want to commiserate with fellow mums dealing with the same issues