It's not surprising that so much of the research on Attention Deficit Hyperactivity Disorder (ADHD) has focused on boys -- boys tend to be squeaky wheels in that department, exhibiting disruptive behaviors. Girls might never utter a word, but sit silently, staring out the window, unable to concentrate. However, research does show that ADHD in girls is just as detrimental, leading to substance abuse, eating disorders, depression -- and it's not a short-term disorder.
If you suspect that your daughter is struggling with ADHD, it's a good idea to talk to a doctor about it -- but here's the link to the National Institute of Mental Health's page on ADHD -- scroll down and you'll find a symptom list, and a helpful chart that will tell you what kind of professionals can help you with treatment and diagnosis. Also, Scholastic has a helpful list of ADHD behaviors that teachers can look for in their female students, like excessive emotionality, extreme untidiness, or unfinished work.
Remember, the most important thing is to get a professional opinion -- so stop reading this blog and talk to your doctor.