Indeed, I'm like this in that I am nearly non-functional for things that I'm not interested in, but highly functional in things that do interest me. I highly recommend speaking to a doctor about this, as I was able to find medication that's helped me tremendously (I still procrastinate, but I can also actually focus without crazy anxiety-ridden pressure).

* Whatever is slightly uninteresting is terribly difficult for him to focus on but if there's something interesting, he can maintain perfect focus for hours.

Aren't we all like that?

I don't think so. I think most people can do "slightly uninteresting" things, especially when they can see the benefit, and I think that many people have trouble focusing on things that they are interested in after a few hours.

To some extent, it's about the severity of these reactions, I suppose.

Definitely not.

I handle rote, monotonous work really well, as long as it lets my brain check out and think about other things. Alphabetizing by hand and transcription work drive some people mad, but I excelled at it.