I'm at my wits end. DD2 is now 5 months old and she went from STTN to waking every 2 hours after getting a UTI. She's still on antibiotics, so I don't know if that plays a role (makes her feel blah?), but I need to get her sleep back on track before I get in real trouble at work for being late due to getting no sleep.. Again.

She eats every 2 hours during the day (trust me, she won't change it, even if we only give her bottles). I nurse her to sleep around 7:30pm and then she'll wake every 2 hours, starting from 2am and acting like she's hungry. She has some separation anxiety, so I don't feel comfortable letting her CIO for more than a few min (plus, my 2.5 yr old is a super light sleeper so I don't want to wake her from the baby crying)... But after trying to comfort/rock/bounce/shush for over an hour the past 2 nights, I give in and let her nurse.

She'll eat a lot, go back to sleep, only to wake up 2 hours later. I can't tell if she really is hungry or if it's just a habit, but I really need some help.