[Close enough and he's trying not to loom. Salarians are super tall and it can be alarming if someone isn't used to them being around.]

Not a problem. Simply did not wish to cause you further health problems.

[No, there are definitely women. Dalatrasses just don't leave the salarian homeworld very often. The horn thing is a result of an old war wound; he'd appreciate it not being brought up.]

Assume arrival from alternate universe in that case. Likely less technologically advanced universe. Security jumbled mess of parts but still recognizable. Quite common for time period.