First time posting so I'm unsure if this is the right place/way to do it.
When I check my gallery it can sometimes be fine but then other times I get a little notification at the top of the app that says something about my SD card having "corrupt files" and that I may want to back it up soon or something along those lines.
I have no idea how long it's been saying this as it only comes up when I choose to view my photos in my gallery as "photos" and not "albums" and I've always viewed as albums, the notification isn't there when it's viewed this way, I just came across it by accident one day.
I've ran a diagnostics on my phone since then, a few times, and each time it's said my SD card is normal so unsure if the notification is a glitch with software or if the diagnostic isn't accurate. I have bought a USB stick to put my photos and videos on and everything is backed up to Google photos to be safe, I've also bought a new SD card but just wondered as I don't want the same issue with my new SD card which is the Samsung EVO and wasn't the cheapest