Thanks for the fast reply. My PC is on 24/7, so may have already sync'd. I get your point, however
Just happened to me, as well. Unfortunately with some incredibly important data. The loss occurred on my business laptop, which is a Macbook Pro running OSX Yosemite 10.10.3. Upon going into my iPhone, the data is lossed there, too. I set my Sync option to Manual to avoid losing everything, but not sure if it was caught in time. Will try my PC when I get home.