The very, very first change any of us have is a change in our medication schedules!! (Even if the bucks or pounds set the schedule a bit.) The majority of my friends, and I too, say that there is a change in your attitude toward life after the first dose. You feel the new purpose and direction in your life that is a lot of fun.
ROTWU is right on the fact that no two of us will have exactly the same experience with physical changes, but they do come, and it is fun to keep a diary of what you did as opposed to what Pookybaby did somewhere. You are beginning your own story, so keep a record of it for you.
Boobs, hair, weight shifts, Deep Vein Thromboses, mood swings, midnight snack preferences, broken legs, traffic tickets, and all the other stuff that can happen, probably will (yeah I stuck in a couple of downers in this list) and will still be just part of you.
I have been on HRT for about 23 months and have not reached "the last" thing that will happen to me yet.
You are in for a long haul!!