I know the feeling. My DD has started waking up to 6 times a night after it only being once for months. I have no idea why and I'm buggered and sooooo over it. I thought by now we'd be close to sleeping through the night again. And yep I've had the tears of frustration and sleep deprivation, alot lately and it's getting to me.
It's not easy being a mumma. We do the best we can. We're all doing a great job.