May is quickly approaching, which means soon high school seniors across the country will be receiving their diplomas and throwing their caps in the air. That is, if they don't fall victim to senioritis. This crippling and mostly made-up affliction affects a student's motivation to succeed during their final year of school. For some, this illness strikes as early as September, while others remain unaffected till the final few months. While there may not be a Web MD diagnosis, there are several ways to tell if your child has developed senioritis. Here, 12 signs that your senior is suffering from this not-so-debilitating disease.