I'm in a transitioning phase and have cut down the number of analogs I smoke, using the disposable e-cig some. I really hope to be analog free soon, but wanted to run it past my Dr yesterday when I went for a visit to get her take on it. I was waiting for a negative response like you got or worse, and if I had I would be upset too since I'm trying to get past my own fear of change, etc and make the total change to e-cigs. Here is what she said:
"While there is not a lot out there so far as studies (or something like that) on the impact of the delivery system in comparison to other things like the patch, etc.....I believe e-cigs are definitely less harmful than real cigs and are made for people like you. So I want you to try to get over onto the e-cigs....and then we can look at gradually cutting down your nicotine level."
I told her that with being congested like I am much of the time, I get nervous about inhaling because it makes me cough (the e-cig - of course real ones do too!!!) and that I just hold it in my mouth and/or blow out nose to get the nicotine. She said "is it satisfying you?" I said no, and she just smiled and said well then that's the problem...you need to get enough to satisfy you as you make the change.
I mentioned the water on the lung thing that a post talked about on here, and she looked at me like I was from Mars

. So bottom line, I have full support from my Dr to make the change....even before I've made it. So there are Drs out there who will support us....150%.