I have, and also only over the last few days or so. No idea what it is that it's trying to "download" exactly, as all my photos are local on the MicroSD card.
What's been irritating me though is that a few apps do seem to be generating/downloading media that eventually shows up in my gallery -- this could be why, as I've also only noticed that over the last few days. Seems to be ads or possibly images meant to be displayed within the apps, but I don't recall ever actually seeing them. And I've got no clue what app or apps are doing this -- I just delete the files when they show up.