Yeeeeaaaahhh... I went shopping today to find my first pair of jeans in Europe cause I'm kind of in desperate need. First, I started off about my size in the US, a 6. Hell.No. So, I tried the 8, and then the 10, and finally the 12. WTF. Basically, the 10 was just too small in the legs (like, couldn't pull them all the way up) and the 12 fit perfectly in the legs, and was 1 inch too big in the waist!!! 
Made me want to go eat a big bucket of chocolate. But since I don't have any, I'm eating my can of pringles instead.
Helpful, I know.