My baby is 15 months going through the same and hasn’t been sick, but she did have a procedure done about a little over a week ago she’s so fussy and she’s waking up once a night some nights for milk. The past 2 days she was whining in her sleep. But the fussy has been going on for about a month now, she’s very clingy and also has been wanting to lay on me a lot more, but she self soothes and puts her self to sleep. We don’t carry her. So I’m not sure of the change but it’s definitely a big change
There’s a growth spurt at around 15 months :/ also might be teething. And coming out of a sickness, she’s uncomfortable! Give her a week or two, she’ll be back to normal.