Could I have dyslexia?

I am currently a college student and do very well I school. However, when reading something it takes me longer than the "normal" person. This is epically true in math. I have to stare at the problem to really understand what I need to do. While I don't think I have a reading comprehension problem I really have to focus on the material to understand it. My question is a little vague but I can't really think of another way to explain it. From what I understand dyslexia isn't just reading words in a mirror image. Some input on other people experiencing this would be great.