I'm the guy eggman is referring to :) Thanks for all the info!

No I do not like working with people. I would aim for surgery or radiology for this reason. I currently do not perform well under social pressure but my anxiety should diminish with time. Yes, I think I am good at explaining things in simple terms. I prefer less social interaction. I could tolerate a strict hierarchy. I don't handle sleep deprivation well. I do not handle uncertainty particularly well. Yes, I think I could handle accidents better than most people.

Med school isn't generally about that. Would it be agony for him to memorize loads of facts without questioning/understanding them too much, then forget them because he doesn't need them for anything? Also, much of the stuff you have to memorize after the first 1-2 years has nothing to do with human biology. There are some challenging moments with complicated patients, but the work is mostly quite simple and algorithmic.

That's bad news but not a deal breaker.