Remember, trained professionals know what they know care of coalesced information gleaned from observation. You deal with "the source" in a far more intimate, constant, and specific manner than _any_ doctor.
I'd chalk it all up to stress, actually. My BG tends to get wonky when I go in for a doctor's visit. Add your IM bolus (which I've not had the courage to try), and I cast my vote for "caught a well-controlled T1 during a bad moment". Or, put more directly... you-know-what happens.
If you feel that your control regimen works for you, and is the best alternative... just relish the irony, and keep sharing your thoughts and experiences with us.
