my son was always advanced at everything (crawled at 5 mos,stood at 6 mos ,at age 2 he knew the alphabet in english, hebrew & french ) ) he was 8 mos old he found an old box fan ..he would sit on his knees and spin the blades (we cut the cord off )he was completley obsessed for several years .box fans ,windmills ,pinwheels ...never asked for toys ,only fans . also started throwing fits ,and cussing .... I took him to the Dr.( he was almost 3).she said tha this IQ was low average ,but the results were not 100 % correct because he simply refused to d o the things she asked ...she said that the fan obsession as a symptom of autism. at about age 5 he completley forgot about fans ,..he was always oppositional and agressive ,last year ,was tested for ADHD.results were "ADHD,combined type /ODD/ Dysthimic disorder /social skills deficits & chronic negative affect .NO frustration tolerence whatsoever ,and becomes violent when the lady at mcdonalds puts cheese on his hamburger ...after the diagnosis ,we tried Adderall & strattera , switched to Zoloft & seroquel...he became enraged and broke the windows out of my house ,got suspended from school ..we are seeing a child psychologist now ,and under her care he has been on ,Imprimine ,seroquel .he is on Trileptal 150 MG twice daily ,and 75 MG Seroquel at bedtime with another 25 MG in the AM ....there is a strong family history of bipolar disorder ...I completley agree with the ODD diagnosis ,the other ..I am not sure