13 month-old labrador still not had her season

[EmGee]

Is it ever going to happen?????
The vet suggested she'd had her first heat and it had been 'invisible' but after looking her over, confirmed that she hadn't.

She's a bit mad especially around other people/dogs so am wondering if she might calm down a bit once it's happened?

I think anything up to 18 months is considered normal.

We didn't really see any behaviour changes during or after seasons

Labs are generally mad until 2/3 anyway, both sexes. Are you wanting to know so you can neuter her, or?

In my experience, fit and healthy Labradors don't calm down until they're in double digits 😉

As for her season, she's still young. I wouldn't bank on it changing her behaviour when it happens though.

Her season won’t calm her down (neither will spaying) labs tend to need to age into their more chill moments.