Are there different kinds of Dyslexia?

My daughter started kindergarten this year and was the perfect student. Now that they are working with numbers she is very frustrated and is acting up in cl. While the other kids are counting to 50 she can't get past 10. The teacher told me the other day that she now believes my daughter has a learning disability. Isn't dyslexia a problem with letters and words not numbers? She is very gifted when it comes to arts (music, drawing, etc) but certain things like math set her off emotionally.