Dyslexia, ADHD, and other problems, what can I do?

okay, the title was more to drag you into reading waht I have to ask. I am wondering, I have thought for awhile that I have dyslexia, I often spell things backwards, I am ambidextrous, I have ADHD, and I have no problem writing right to left but so that when I write right to left, I write it so that it is read left to right. I am very attentive to others mistakes, and I can capture a spelling error in somebody else's writing much easilier than in my own. I also enjoy making up words such as "easilier." I love writing, do I have to be dyslexic??? How and where do I get tested? My doctor has been nothing but useless when I ask him about getting tested that's why I had to refer to the Internet and Yahoo! Answers