Faint clicking noise with snapchat and camera app

Hi,
Lately I've noticed a faint snap/click noise when using both my camera app and snap chat app on my s7. For instance when I open up the camera app and click the corner to view a picture I'll here it, or if I view someone's snapchat story or leave that app I'll hear it also. Everything on my phone seems to work fine otherwise. Does anyone else have this? Is it a sign of damage?

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