What would happen if I cleared the data of my Gallery app? The app says it's using 36.29 GB of data, even though I don't have nearly that much memory on my phone and SD card combined, so I want to get rid of this bug.

My phone is Samsung Galaxy Grand, and it's not rooted.
I have suffered from same prob. Donn't worry, just clear the gallery app data.
When you restart app it takes some time to reload images &amp; video's thumbnails.