If there are requests, demands or services that can only be made/accessed with test data, I'd be inclined to test. Otherwise, I'd likely wait until she were older and test results more likely to be reliable and widely accepted.
I would also tend to assume that given your very high IQ and the things you are seeing (as well as the feedback from your friend) that she is gifted. So you may want to go ahead and start making school decisions and preparations with that thought in mind, even without the testing to back it up just yet.
And welcome!
