system
What causes anxiety and lack of concentration?
human
I am a 20 year old female college student struggling with school and work and homework.  I have had problems focussing in school for years, the school nurse wanted to put me on ritalin but I felt like I did not want to be "medicated." I would like more information about the different kinds of medications out there to treat ADD symptoms. I feel very unmotivated and stressed out over everything that I need to get done.  I have had problems sleeping lately.
gpt
Hi dear,Having difficulty in school work and concentration suggest you might be suffering from depression. but with out detail history we can not make out diagnosis.so consult psychiatrist for detail history and treatment.there are many medication which help you like SSRI (Selective serotonin re uptake inhibitor), SNRI (serotonin and nor epinephrine  re uptake inhibitor), NASA (nor epinephrine and serotonin antagonist) etc.. Also there are many psychotherapy which also works.Thank you