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Sudden behaviour change in 7 month old

9 replies

lilbooboo1 · 27/11/2021 10:24

Hi Smile

My DD is nearly 7 months old, she has always been so calm and placid. Rarely cried or got very upset. For nearly 2 weeks now her behaviour and her personality has completely changed. She seems super angry and upset all the time. She is having meltdowns constantly, especially if me or my DP leave the room. I know they can get separation anxiety around 6 months onwards. She also has cut her first tooth so I've been putting it down to that but it seems like it's going on for a long time. I'm worried she will never be herself again....what if she is like this now forever! 😕. I'm struggling so much as the upset is outweighing the happy times. I'm trying to soothe her and stay positive but it's becoming so hard. I feel guilty but I feel like I don't want to be around her 😞 I basically look forward to her napping so I can have some peace. Anyone experiencing something similar? I'm worried I'm missing something and she's not well or if this is normal x

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2reefsin30knots · 27/11/2021 10:31

Just flexing her personality, I reckon. They do start to realise they can have more control over the world at that age. Does she crawl? If not she might be getting frustrated that she can't move now she realises it would be a good thing (so she could follow you!).

It's worth ruling out pain with the GP though if it was a very sudden change.

lilbooboo1 · 27/11/2021 10:39

@2reefsin30knots

Just flexing her personality, I reckon. They do start to realise they can have more control over the world at that age. Does she crawl? If not she might be getting frustrated that she can't move now she realises it would be a good thing (so she could follow you!).

It's worth ruling out pain with the GP though if it was a very sudden change.

I might get her checked out just to be sure as she is like a completely different baby. She's not crawling yet, been trying to get her to try but she's not even wanting me to put her down. I do think she will be calmer when she can get about more 🤞 x
OP posts:
Greenmarmalade · 27/11/2021 10:42

Could well be teething pain. But they do change as they get older- 10 months I really notice how they start playing and interacting more. 18 months the tantrums and boundary-pushing tends to start in earnest. I think it’s just to be expected that their behaviour can become more challenging to deal with.

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Fet2021duejuly2022 · 27/11/2021 10:45

Teething can drag on. Have you checked her other teeth? My daughters 2 and still has teeth coming through. She gets super grumpy and it takes ages for them to surface

Garman · 27/11/2021 10:55

Get her checked for an ear infection.

lilbooboo1 · 27/11/2021 19:33

She's been in a lot better mood this afternoon and evening. Mostly calm and not as stressed but we noticed after tea one cheek looks red and swollen 😕 not sure what that's from?

OP posts:
Garman · 28/11/2021 10:54

It could be an ear infection, get her checked for that.

mammysprout · 24/07/2025 16:37

Hi OP it's been many years now but Im going through this right now. My lovely happy laid back girl is just miserable and angry and grizzling day in day out from pretty much the day she turned 7 months. It's been 3 weeks now and exactly as you say the bad is outweighing the good right now I miss my smiley baby. Did this endure for you?!

DinosandRegrets678 · 24/07/2025 17:21

mammysprout · 24/07/2025 16:37

Hi OP it's been many years now but Im going through this right now. My lovely happy laid back girl is just miserable and angry and grizzling day in day out from pretty much the day she turned 7 months. It's been 3 weeks now and exactly as you say the bad is outweighing the good right now I miss my smiley baby. Did this endure for you?!

You will find it more useful to start your own thread as people are going to keep replying to the OP. 6-12 months is a time of huge changes as well as lots of teething and illnesses. Mine also went through phases. He was extremely happy once he could crawl but then got bored after a few weeks and wanted to walk. Once he got walking he was super happy again. It's a pain in the arse to have a 10/11 month old walking but he is incredibly happy all of a sudden.

Moody days are also usual down to teething. How many teeth does yours have already? Mine was grizzly as hell for a couple of weeks before the first teeth came. And even now, every tooth = a week of moaning. Some babies get over teething in 1-2 days, mine seems very affected by it.

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