Rapid Skull Growth

This may sound like a ridiculous question but ive never gotten any closer to an answer 3 years after it happened. In one week around the middle of summer 2003 my skull grew a tremendous amount. I am a 20 year old male, this happened when I was 17. Before, my head was about 20-20.5 inches in circumference and very "light." my body never grew to accomodate for this gross "unproportionality" (for lack of a better word); I am still only 5'6.5 and my head is around 22 inches in circumference. Ive looked into pagets disease and even though I did experience a large amount of those symptoms I disregarded them because of my age at the time. I went to doctors but not for this particular issue because its so embarassing, regardless they never found anything strange. If anyone out there has any information on what this might be or a "cure," even a pill that shrinks your head by starving the blood vessels or something I would be totally open to any solution. I know this whole thing sounded tremendously stupid and ridiculous but it is causing me so much self-esteem and self-worth. :oops: