Yikes! I don't have any really good ideas, but I couldn't not offer a hug!
You said that she'll only sleep with you holding her, bouncing on the ball...maybe try one of those little bouncer seats (if it's the bouncing that soothes her?). Or have your partner bounce her on the ball before her normal sleep time to perhaps soothe her and wear her down a little so she'll fall asleep with a different technique?
Have you tried not putting her to sleep? I mean, if you put her in a sling (or considering your back, have your partner sling/carry your dc) and just go about your evening will she eventually fall asleep? Perhaps not quickly (or by the time you'd like her to sleep) but at some point she'd have to snooze, right? Maybe do that for a few days to break the bouncing habit while replacing it with a more adaptable soother?
My own dd (12mo) likes to nurse to sleep, but she's gotten used to having her daddy put her to sleep for naps so she's willing to suck on a finger if the "booms" aren't available. We went through something similar around 4 months when I went back to work, but after a few days of fussing with her daddy at nap time she seemed to figure out that his fingers were almost as good for chewing on.
Good luck mama...and I hope your back feels better soon!
You said that she'll only sleep with you holding her, bouncing on the ball...maybe try one of those little bouncer seats (if it's the bouncing that soothes her?). Or have your partner bounce her on the ball before her normal sleep time to perhaps soothe her and wear her down a little so she'll fall asleep with a different technique?
Have you tried not putting her to sleep? I mean, if you put her in a sling (or considering your back, have your partner sling/carry your dc) and just go about your evening will she eventually fall asleep? Perhaps not quickly (or by the time you'd like her to sleep) but at some point she'd have to snooze, right? Maybe do that for a few days to break the bouncing habit while replacing it with a more adaptable soother?
My own dd (12mo) likes to nurse to sleep, but she's gotten used to having her daddy put her to sleep for naps so she's willing to suck on a finger if the "booms" aren't available. We went through something similar around 4 months when I went back to work, but after a few days of fussing with her daddy at nap time she seemed to figure out that his fingers were almost as good for chewing on.
Good luck mama...and I hope your back feels better soon!