Do I have ADD??

Ok so recently my brother was diagnosed with ADHD. And my parents have been buying books and using stratgeys to hep my brother they used thoses strategies on me too. But anyways I always have a hard problem staying on task at school i'm always looking "off to space" and i usually go through the whole cl without moving a muscle sometimes only becasue i see something out the window or something is dropped something moved or their is a bug etc. I also find it hard to finish my homework If i have to do work i start to procrastinate.. A LOT. I'm only good at dong things I want to do like watch T.V. I clean my room when i want too. My parents tell me to alwasy clean my room but i refuse until i feel like it. I'm looked at as lazy and spacey immature and stuff like that. I have horrible handwriting and i'm a girl not to be stereotyping.. I have horrible hand eye coordination which makes me suckish at baseball and softabll and basketball etc..I forget things really easily. Do I have ADD????