This may help you --> Share analytics, diagnostics, and usage information with Apple

A normal user like me do not want to know what these analytics/diagnostic data mean. These should never bother anyone especially when there is no issue with your device.

These are meant for diagnosis when the iPhone goes for service or repair to the Apple Authorised Service center.

Take your device to an Apple Retail Store or Apple Authorized Service Provider, or contact Apple Support:

Apple Repair and Repair Status Check - Official Apple Support

Apple Authorized Service Provider

Find Locations - Location Selector - Apple

Contact Apple for support and service - Apple Support 

Get a Genius Bar Reservation and Apple Support Options - Apple

Contact Genius Bar.

Manage Reservations - My Reservations - Apple