I updated my 6s to 11.2 about a week ago. Update went fine. After a couple of days to let things settle everything seemed great...and they still do for the most part. It’s just now I noticed that there’s almost always the little spinning circle in the top left of the phone next to the WiFi symbol. It’s always spinning as if it’s doing some type of work. I have closed all apps and it’s still there. A reboot seems to stop it but it eventually returns and doesn’t seem to stop. I have noticed the phone running hot at times. Any idea what this could be? Thanks