Alert: Database changes detected

Hi,

Numerous times a day I am receiving email alerts informing me that ‘Database changes have been detected’. The first emails will contain s the following:

Total administrators : 1

Admin ID:
-user_login:
-user_nicename:
-user_email:
-user_registered:
-display_name:

And then the next email, sent almost immediately after lists the details of the two admins that I expect.

This has been going on for a few days now.

Should I be concerned and if not any ideas how to resolve this?

Thanks