No, I mean turn Photos off completely. Then after an hour, turn it back on. As long as Photo Stream is on on your PC, and you turn it back on on your device, it will all sync back.
Well, it turned out that didn't happen. Before I turned My Photo Stream OFF on the iPad it had 1000 photos dating back to December 18th. After turning it back ON, it now has only 288 photos dating back to February 18th. So, this little exercise caused me to lose 712 photos from my iPad. (My iPhone still has 1000 photos dating back to December 18th.)
I am not a happy camper….