I, too, was told by a GT expert at a location I won't identify that dd9 likely had ADHD and dyslexia based upon her IQ subtest spread. I was then told by two other psychologists that she absolutely did not based upon other measures. There seems to be a lot of disagreement among experts about using IQ spread to dx LDs or anything. When I did some research, it does appear to be a nebulous science to attempt to dx anything based upon IQ profiles.
The article I linked above cautions strongly against "profile analysis." Scroll down to page 407 to see their thoughts on it.