I have indented those bits and can't figure out how to undo it.

seems fair. I doubt I'm young enough to be joining a foreign legion, at 40. The wife and kid might object as well :)

Besides, I'm not very warlike. Or good at being shouted at. Or any other things I associate with the army really, apart from maybe 'spending time outdoors'. I'll have to keep seeing the world some other way!

Have you got a bit of a social circle now in Boston? I know for me it's quite vital that I see people, despite labouring under the illusion for many years that I was more of a loner.

For many, many years I did not actually care very much about maintaining an active social life.  Then my head-doctor started me on a new drug and I found myself feeling strange, uncomfortable things.  For example, I desired to know more about my classmates.  When I was alone, I noticed the absence of other humans.  I would see people standing in groups, and wish I were included in the conversation.

It was bewildering and unsettling.

I have since started seeing a different head-doctor who is supposed to be helping me learn what normal social interaction is like.  (The VA in Boston is a godsend.)  I say "supposed to" because he has so far refused and I am going to be requesting a new person to work with.