Yes. I was diagnosed with ADHD as a child, had a very erratic academic record (HS GPA 2.5, VSAT 750, MSAT 610-640), and ultimately dropped out of college. Along the way I was diagnosed with OCD. I now work as a software developer.

My compulsions lately center on estimating my IQ. I've read dozens of articles on SAT/IQ correlation, found and self-administered (before panicking) sections of purportedly "g-loaded" tests like the WISC, Miller Analogies Test, GRE, etc. The prospect of a professionally administered test, or the discovery of the results of a childhood test, terrifies me.

I ruminate a great deal about my academic failures. Lately, after reading about the heritability of IQ test performance I've expanded the scope of this rumination to include my relatives.

My great grandfather worked a white collar profession when that was rare; ah, but be completed his degree late in life. My mother went to trade school - this surely doesn't bode well. My father got a masters and began PhD coursework. Ah, but there's the rub: he didn't finish. I pulled a few papers and found, to my horror, that they were riddled with grammatical errors. Two uncles are employed only irregularly, as is a cousin, despite a STEM degree (ah, but in an unusual and perhaps less demanding degree program).

I can't help but note every malapropism, paraphasic error, moment of forgetfulness, failure to plan ahead, indication of ignorance, etc in myself and close relatives and interpret these as signs of my inherent limitation ("fundamental attribution").

What's interesting is that as a young man I was for the most part quite convinced of my ability in some areas (computer programming, debate). After failing out of school my self image was dramatically altered, but I still felt I was a person capable of contributing something intellectually to the world, however modest. Throughout my early twenties I was reassured of this by the fact of having held down a programming job, unsolicited positive feedback from peers and supervisors, job offers, etc. I'd also developed a kind of academic hobby, and had been invited to present a paper at a very niche conference.

Thr current bout of OCD started when I got my first really negative performance review at work ("inconsistent productivity") and simultaneously did a poor job on my overly-ambitious conference paper.

I suspect "intelligence" is a common fixation because it holds out the promise of predicting the course of one's entire life. This leads to a sort of secular predestination belief: that only the cognitively elect can find satisfaction in this life.