Where did the newest photos on Gallery App disappear to overnight ?

Took 30 photos of Danish plates last week to consign to auction house and several of cats yesterday. Opened gallery now and found only photos May 17 or earlier. Really upset because it was lots of work to unwrap and photo 30 collectible plates.

Hello. Have you searched the Photos app or checked internal storage. Was the camera set to save to sd card if your device has one. Does Settings - Accounts - Google (and Samsung if you have one) - sync settings have Photos / Picasa and Google + checked.

If you have a card it may have failed but be possibly retrievable.
Can you search for the DCIM folder via USB from a pc?

I have the same problem- they are all "synced" yes- but nothing displays in Gallery. They are under DCIM- How do I get my images to display on gallery again??
Please help