Oh boy do I remember those days. Caitlyn would get fussy around 6 pm every night and the only thing that would make her happy was nursing or being held/in a sling.
The good news is, they do outgrow it. Now at 10 months she no longer has a certain time where she is fussy/needy. Although the downside is that she is a busy little girl and doesn't sit still for long. I kinda miss holding her for hours