You know, now that I think of it, I did have a bout of acne early on...though I think mine happened around the 1-2 month mark, lasted for a month or so (I remember because I have xmas pics to prove it, lol).
I can't really say what the reason behind it was, but the whole toxin/hormone release during rapid fat loss would make sense...
Congrats on your upcoming surgery, though!
Good Luck ❤️