The dot(s) could have appeared after you used Spotlight Search and highlighted text. If you access the Spotlight Search again, you can see that the dot (or two dots) is (are) the same as the dots at the top and the bottom of the 'handle' that appears when you highlight text. It (they) should've disappeared after you closed the search, but it (they) didn't. A simple restart will help in that case.
If you don’t receive the email in the next 2 minutes please check your junk folder, and add [email protected] to your safe sender list.