To find this a bit odd?

[Sienna333]

To be referred to as a "Tiny little thing"

I am mid 30's! The colleague who said it is 53. I find it quite condescending

[NeedMoreSleepOrSugar]

Presumably it was about your stature, not your age? Not sure why ages are relevant. I've been called the same, can't say it bothered me, I am quite slim and fairly short. (And have been called a lot worse! )

[nevereverever83]

almost certainly a height and/or weight thing.

[Trills]

Patronising.

I'm sure many of us have been called worse, that doesn't make this an acceptable thing to say.

[Sienna333]

Haha, Yes, definitely been called worse!
It was about height but was condescending and a bit over familiar I think.

[Trills]

You know how tall you are. You probably stopped growing 20 years ago.