DSLR claims that my 16GB SD card is full from 32 photos. Is there something wrong?

I own a patriot 16GB Class 10 and a Sandisk Extreme 16GB. I use it on my Nikon D5200. For the year I have had it with the same SD Cards nothing wrong happened 'till now. In BOTH my cards, after taking just 32 photos my camera sys the storage is already full. I use to store over 500 photos on these cards. I didn't change the quality image nor size. Any thoughts?

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Which one to buy: Macbook Air or Canon G7X?

I own a MPro 15" and a Nikon D5200 but they are too heavy for me when traveling. So right now I am planning to buy either a portable laptop or a portable camera. I can't decide which one to buy. Help? And if you could, please include your reason. Thank you!
Added (1). If going with the laptop… Which one is better? 13" mpro or air?

Read more: Which one to buy: Macbook Air or Canon G7X?