Did you have problems in school because of having "special", obsessive interests or stereotyped, repetitive, restricted pattern of interests? I think that it may be some sort of problem in my secondary school and on the studies. Special interest about AS and similar conditions could have negative impact on my results in education when I was about 16 - 17 years old (I had even two unsatisfactory grades (1 in 1 - 6 scale used in Poland) in first half of school year when I was 17. One of them was from Maths, but nearly 18 monts later I wrote my "mature" exam from Maths at 100% at elementary level and I had above 90% in advanced level. I think that it allowed me to go on the studies on which I am now.
Now I have "cranky" interest about AS and similar conditions again. This semester on the studies was quite harsh for me. From 31.01.2015 to 2.02.2015 I do not search data about AS in the Internet, but now I read a lot of text associated with my "obsessive" interest. It may look somewhat "addicting". I had large average grade in last semester (above 4,6), but now I might have much lower (maybe even below 4).