Should I get tested for ADD?

I was reading up on the symptoms because my brother has it and I think I've got some of the symptoms. I know that not you won't be able to diagnose me but I would just like to know if I should be checked out (PS I think there is a small possibility of me having it but I would still like to know if I should see someone). First things first, I make good grades and I used to have straight A's (in elementary school) but now I make A's and B's. I often space out in school while teachers are giving their lessons but a lot of the time I already know what to do because in math all we do is formulas and if you know how to plug in the #s and use a calculator it's pretty easy (I'm only in middle school), and for everything else the teacher gives us worksheets in which the questions pretty much explain what you need to know. I often talk a lot to people who I am comfortable around (I'm shy around some people) and I get in trouble a lot because of my talking. I'm not really disorganized but if the teachers don't require me to put papers in a certain spot I just put them in my binder. I'm just wondering if I should get myself checked out. What do you think?