Yes, I do, and it's causing me a bit of confusion lately.
Namely, I've changed more in the past 2 years than I did in the previous 15-20. I've somehow managed to look almost exactly the same since around 14 up until, say, 28. And I mean identical, to the point where I was mistaken for a high schooler or at best a college freshman well into my late twenties. But in the past 2-3 years I finally managed to put on some weight (as in, I went from 60kg to 70kg), grew a beard, started wearing my hair shorter. All this, along with a bunch of minor changes resulted in me occasionally not recognizing myself in the mirror, at least at first.
Don't get me wrong, the changes are for the better, and they have had a positive effect on me, mainly on my confidence. But it's somewhat unsettling to look in the mirror and seeing a stranger there. Sometimes it takes me a few seconds to realize it's me I'm looking at. I just hope I get used to it soon, it's annoying...