6mo waking up a lot at night

[moonprayer]

I really don't know what to do now... So really want to get any advice or help from all the wise mums here.
My 6mo used to be an angel baby who could sleep from 7pm to 3am when she was 1-2mo. Then since she learned how to roll it became an nightmare. I understand babies can change when they are going through their development milestones, but now it's been months even after she learned how to roll back... Now she wakes up every night at 12am, crying for comfort. I can rock her back to sleep in 15min without feeding (best case) and then she wakes up at about 1.30, when she is much more difficult to rock back to sleep so I had to feed her. And then, most night she won't go back to sleep even after feeding, until nearly two hours later... Or in the best nights, she fell asleep but will wake up every half hour. Early morning is a nightmare too. She wakes up early every day at 5 no matter what happened through the night (even I may just feed her at 3am), and the only way to make her sleep is to feed her.
I know it sounds that I may have got her in a bad sleeping habit, but I have always tried to avoid it. Actually she can sleep by herself in the evening at bedtime. I just lay her down in the cot bed and kiss goodbye and leave. Sometimes she could just fall asleep peacefully; sometimes with a little bit whining, but not bad at all. So I don't understand what happened through the night! Why she couldn't go back to sleep by herself if she can do it at bedtime? Could t be separation anxiety, because she complains a lot when I leave her during the day time (when I just go to another room) What should I do?
Thank you in advance! I am a bit desperate now after all these months...

Marking my place because we're having the same issue. He's up nearly every half an hour after midnight and is the same age, which leads me to believe 6 months is a flashpoint for this. Sleep deprived sympathy from me.

hug hug... I had a 2.5yo son and I don't remember I had this problem at all. I know different babies are different, but this is truly beyond my expectations.. How much does your little one sleep during the day? I read somewhere saying that if the daytime sleep is too much, this might happen... With my one, I believe she isn't having too much as she normally only has a 40min nap in the morning and 2hr at lunch time.

Can anyone help? We're having the same problem with our 8 month old but was prem so corrected age of 7 months). She has been doing this for about 3 weeks now, I am exhausted. I have a 4 year old who, whilst not a great sleeper, was never this bad. He is also now waking in the night as he is disturbed by the noise.

Solsbury hug hug... I certainly have no solution for the baby. But for my 2.5yr son, my hubby is helping a bit to make sure that he is not disturbed in the next door. So when the baby starts the screaming extravaganza at midnight, my hubby will just turn on the white noise (gradually increasing the volume) which can block quite a lot of the crying. At least this makes me only focus on the crying baby without worrying too much about my son. Hopefully it can be of a little help to you.. X

Thanks Moon...dd had a better night last night... Only 4-5 wake ups! DS and DDs rooms are next door to each other. Their heads are probably only about 6feet apart, albeit separated by a wall. I am amazed at how much he sleeps through because she can scream!, but it does bother him sometimes, I can't blame him.