Not sleeping/sick 11 month old

So a sickness has run ramped through our family. My son was looking like he was on the tail end of it but then yesterday he barely napped then last night he literally didn’t sleep. He slept for maybe 3 hours. That’s being generous. Now he has a 101 fever with typical that was given at 3am. Please help. Anyone else having these issues?

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Help

My 5 week old is always up from 1am every hour grunting and squeaking and just won’t sleep. I end up having to bring him with me and I’m worried I’m creating a rod for my own back. I’m exhausted. First half of the night he’s okish. But from 1/2 it’s absolute hell. He farts a lot then as well but I just dunno what to do. Last night was the worst it’s been.

Naps!

My lo is 7.5 months and has recently struggled to be put in her cot for naps/sleep. She will sleep on me but as soon as I lie her down wide awake! Help!

Not sure what’s wrong- 5months

Has anyone experienced any of the below problems with their baby?
He’s always a happy baby so this is completely not him. He’s a terrible sleeper but now it’s worse, if it could.

He’s was EBF but now on formula for the last 2 weeks. 2 days in a row now he’s vomitted a lot of milk out everywhere in the evening and just before bed.
For example I was walking around the room with him around 18:45 and it just came out of no where everywhere.

He’s very miserable and takes ages to get to sleep. Crying lots.
He’s been dribbling a lot, flushed one cheek but I can’t see any teeth coming.

All night he just won’t settle in his cot. Sometimes just starts crying hysterically and I can’t settle him at all.

A very tired mama.

Any advise on what it could be?

Changing pram

When is everyone planning on moving baby from carry cot to the upright pram? Mine is nearly 4 months. Theres lots of different advice online.

Sleeping through

If your baby is sleeping through the night are you ever nervous about saying that to other parents with babies of the same age? My toddler no longer sleeps through without coming into our bed but did until about 11 months old and now my 11 week old has been sleeping solid for 3 or 4 weeks now. I always feel like I can’t say it to other mums because it comes across like I’m showing off…I know what the sleep deprivation feels like and how you can just resent anyone for anything🤣 but I kind of feel like I can’t relate sometimes.

Is there any correlation between sleeping through the night and types of feeding?

Did your baby age 0-6months sleep through the night, 6 hours or more, and how were they fed? It always see like formula fed babies sleep through the night sooner than breastfed babies.