Very interesting thread!
It is so funny, it's a weird coincidence, cause today, I was thinking, I have no clue about what my size is as of now !
The thing is that I came to Canada 6 years ago, I was never what we call a thin girl, but I was kind of ok, so I brought my old pants with me, which I don't know the size since sizes back in my country are different from here. I started gaining weight in here. I got married at 220 pounds after I did the cookie diet (which is the worst diet ever in my own opinion), then I ballooned to reach my all time high of 250 pounds after only two short years of marriage. I started the IP at 248 after I heavily exercised to a DVD of Jillian Micheals which killed every muscle in my body to only lose 2 pounds after a month

.
Anyway, long story short, I started being a size 18 to 22 depending on the clothes.
I have no clue what is my pant size now, I am so eager to know, should go to the mall soon and start trying new pants.