I noticed the volume on my iphone 6 automatically drops to the lowest volume setting recently. The other day I was listening to music while I ran and the volume kept dropping every couple of minutes. I would use the volume button to raise it again but it would revert to low setting. Since I first became aware of it I remembered not hearing the ringer a couple of times earlier in the week.

I've turned the phone off and rebooted but the volume is still reverting to low. I downloaded the latest update a week ago or so. Has anyone heard about a bug in the lastest iphone updates? I also dropped the phone in a creek when I broke through the ice this winter so I guess it's possible that is causing my issues but wouldn't I be seeing other problems too?