To let my baby cry it out?

[ConstanceAndTheElephant]

My five month old DD gets these moods where she wants to be held by someone STANDING UP. The person has to be standing up. If they sit down with her she'll scream uncontrollably. She can be just fed, winded, fresh from a nap, clean nappy - I.e. no other reason for her to cry, it's just that she INSISTS on her grown up being stood up. As soon as you stand up she stops crying, as soon as you sit down she starts. AIBU to stay sitting, holding her, knowing she is fed, clean and rested and just let her cry? She sounds so distressed but I can't walk around on stop .

what happens if you sing to her (not play music but your voice singing)? My babies always used to stop crying to listen (even though I am an awful singer).

I used to sing the same few bars over and over again.

I read somewhere that babies can hear singing better as communication than speech.

hecant ok, it was just a throwaway comment, I don't really think babies are weird and I'm sorry if you think I hurt their feelings

More people suggesting you "get help with the colic" What does this mean?! Colic isn't a medical condition! Do people mean wind when they say this?

My DD (who's 9 months now) did exactly the same thing at the same age - I'm sure it's part of a development leap / growth spurt (you can buy the wonder weeks app for a few pounds and it has some great tips for how to deal with the crying tantrums!) They've just registered that mummy/daddy and put them down and walk away and leave them behind so they become extra clingy.
Best way I found to deal with DD like this was to wear her as it meant I was hands free or would try feeding her to calm her down. It only lasted a month or so and then she got over it!

Sitting down cuddling your baby isn't leaving them to cry it out. Leaving them to cry it out is putting them down in their cot and leaving the room and not going back even if they are crying.
YANBU.

I think you just have to slog it out I'm afraid. You can have all the sympathy in the world, I absolutely get how tough it is because my DD screamed for 4 solid months without respite and I spent that time trudging round the flat or the park with her, woe betide me if I sat down, continuous movement was the only thing that got us close to comfort for her.

It's HARD. It's really hard, I totally get that. But the alternative is leaving your very distressed baby to be distressed on their own, so, i picked DD up every time and I kept on walking. Slings helped. Sometimes she would go to sleep in the pram while we were walking and I'd eat a packed lunch in the park while continually moving the pram with one hand.

It does stop, eventually. She was a very happy baby once that first stage was over, and it'll all be a distant memory soon.

I don't think you are BU. Sometimes babies do cry just for attention, and the only way to get them out of it is to let them cry.
I go by the 10 minute rule, for example when my lo needs a sleep I put him down and leave him. Yes he may cry, but I leave him for 10 minutes to settle down. In which time he usually does. If not then I go back up to him and calm him down.
Recently he has sometimes screamed for attention, he will be happy playing and then start screaming. So yes I leave him to it for a bit. I know he isn't hungry or tired or needing a clean nappy, obviously if it's anything like that I'd never ever leave him crying. I've only ever done it when I'm 100% sure there's nothing else wrong.