Charlie was also a child who woke often, sometimes once a night, sometimes 4 times a night, almost never slept through, until he was 11 months old. Now he's an excellent sleeper and if he does wake and cry for any reason I always go in there as I know he doesn't cry for just any reason. I also think going in when he cries (I'm not talking small grizzle but a proper cry) allows him to feel secure in the knowledge that mum is near by if he's scared, sick or cold, and will take care of whatever it is that's bothering him. And I know that he only cries if he really needs me.

Charlie also got 6 teeth in 3 weeks, so don't discount that she might still be teething. Or it might be that her sleep patterns are disrupted from the previous teething and she now wakes and doesn't know how to put herself to sleep. In my experience, they settle back into their old sleep routine just in time for another set of teeth to sart coming through and their sleep patterns go haywire again! At that age, so many things are happening to their little bodies, it seems almost inevitable they're going to be unsettled every now and then.

But do remember it will pass. They don't stay little forever and they do learn to sleep through. Some earlier and some later. As I said before Charlie is now an excellent sleeper, and at bedtime, I go through the bedtime routine, and I put him in his cot awake and he goes to sleep on his own. If he's tired, he'll pull on my hand saying 'night night' so I know he wants to go to bed. This is a boy who as a baby, I believed would never learn to self-settle. So just keeping telling yourself that this phase will end, and it will.