When to Officially Call Yourself A Runner?

Well, I did another four miles today. I felt strong in the first mile. I actually ran the entire mile. Usually I poop out around .75 miles and I end up needing a breather for about 30 seconds but today I ran the whole mile.

Then I ran three more. Then my girl friend came over and we started talking about feet and since I am not a big fan of feet and the most I do with my feet is paint my toenails, I noticed these bad boys on the bottoms of my feet.Two blisters festering on my heels. Does this mean I am officially a runner now because I got my first set of blisters?