I basically agree with Christina. I'ld just let it lie and not go to HR. (They might even wonder what you expect them to do about it.) You've got one issue in the works, and that's enough at the moment.

Christina is right about the boundary problem that you do have. Not that I'm real good at that myself. I'm not and I know how very easy it is to open up when one should really pull up the draw bridge and let the alligators loose in the mote. I'ld be inclined to say something like, "Aaaa . . . it's just something that came up and I'ld rather not talk about it." Or you could cut that down to "Sorry, I can't really go into it."

What you discussed with her was ultra personal. She knew that, and she was just proving to herself and to you that she can barge right through decent boundaries. Even if she were someone you got along with, she'ld have no right to ask. If you learn to deal with her encroachments onto your personal psychic space, you will have learned a lot. See her as giving you that opportunity. Hone your skills at boundary defending. There ought to be books on this topic, with real specific suggestions . . . like the books that tell you how to right courtesy letters. There probably are.

Hope your recovery goes well.