Have you ever had your personality test results change? Do you think it's a result of you as a person changing as you go through life, or inconsistency of the testing measures?

So I love personality tests - I used to do them all the time. And I love Myer's-Briggs. I found this thread from awhile ago: http://boards.hellobee.com/topic/whats-your-myers-briggs-personality-type
I took that test again. Back in 2012 I was ENFJ and today I got ESTJ/ENTJ. That's a different of two letters! But I took a second test (here: http://www.16personalities.com) and got ENFJ again.
I do identify with elements of each.

What is your MB results? Have yours ever changed?