CTY Withdrawal
CTY Withdrawal is characterized by the feeling that you should have a lanyard around your neck--in December. It is a wave of intense sadness felt after leaving CTY. Cases of CTY Withdrawal are worse for nomores and nevermores.
After leaving CTY, many miss their CTY friends and experiences. Sometimes, this can last for a few days, a few weeks until school starts again, or even longer. CTY Withdrawal can lead to crying when hearing American Pie or other Canon songs, talking obsessively about CTY to friends from home, and hastily organized end of summer reunions.
It can also include thinking that you see your CTY friends everywhere you go (including random people you've never met in stores and on the street) and having dreams involving only CTY people and having them morph into your non-CTY friends (and being incredibly dissapointed).
NOTE: I can verify the above symptom: thrice. -Max W.