Haha, I really hope that my sense of smell unsharpens when I go on t. The world is a place of nightmarish smells as it is (I have a light form of mcs too, so that doesn't help).
I believe that females' sense of smell becomes more acute depending on where they are in the hormonal cycle - I think it has something to do with smelling who would best complement your own immune system when you, erm, reproduce.
So it makes perfect sense you experience this when you start hrt, gals