Replying to Full Tilt Classics Hurt?

I recently purchased the full tilt classic boots, and no I did not purchase them because they looked stylish. Regardless, they seemed to fit great in the ski shop, so I got them heat molded. Not long after that I went skiing, and my outside lower calf muscles (about 1 to 2inches above my left and right ankles, Peroneus Brevis) hurt. They hurt to the point where i couldn't ski or walk. I believe it may be a tendon.

Has anyone else had these problems?

Is it just a matter of breaking in the boot?

and why might I be getting these pains?

Also I wear a size 8 1/2 to 9 shoe and i am in a 26.5 boot, however my ankles seems to move up and down a lot even though the boot seems snug.