Not weight loss success but still exciting for me.

Hi, just wanted to share.
Before I have started all this journey of weight loss (1 year and 9 months ago) I have not been overweight. Within normal BMI. Sometimes in the middle, sometimes at the higher point. I have never been tracking calories, never exercised on regular basis (going out to the night club and dancing all night after few tequilas does not count). I was pretty happy with my body until I had a baby... My weight gain was not too big around 15 lbs, but body composition was absolutely horrible for me.
So, I have joined the YMCA when my son was 3 month old and I could not stay on the elliptical more then 10 minutes. Then I took my first Zumba class and nearly died after 20 minutes! But I kept coming back. So, in 1 year I became a Zumba instructor myself, a month ago I've got certified as a group fitness instructor and in my plans is to get some education in nutrition.
I could never run before. It was too boring, to difficult for me. So, yesterday, I came on the treadmill, covered the screen and ran. When my workout was done, I could not believe my eyes! I ran for 4.5 miles and did not feel like I was ready to pass out! I guess, it is time to try my first 5 mile race!
Thank you all for support, your blogs, advise! I could never do this without this website.