Im not being able to view any of my clicked photos on my device or the pre loaded ones either. It just shows blank thumbnails when i open my cameraroll section. When I connect my phone to the pc, it doesnt shows any photos in the internal memory, even the fresh ones I click just for testing. This started happening just a few days back. Since then even my store is not working. It hasnt been even a month since i bought my phone :( Any help would be appreciated a lot!
It sounds like your phone has a serious fault, possible with its flash memory (ie. the internal storage of the phone).
I would suggest you either...
Bring the phone back to where you bought it, explain the problem and ask for a replacement
The GDR2 update should be appearing for all Windows Phone 8 devices, but I don't think that it will fix the issue. It's a far better idea to get the phone replaced.