This sounds exactly like my story! Initially was talked out of wanting a double mastectomy, my surgeon also reckoned it was unnecessary so I ended up doing the one only. Then after my gene diagnosis, she decided the remaining healthy breast had to go. I was so upset because that was what I wanted initially and hence why I always recommend other woman to go with their gut and demand what they think is right. But yes, there is no point in going back to 'what should have' or 'what could have'. In the end the surgeons don't want to just hack away at our bodies or healthy parts and approach it all less invasively unless they absolutely have to. In my case my surgeon told me before my surgery that she would like me to be gene tested after my mastectomy (I was a bit baffled by 'why after' and why not before?). If I had been gene tested as step one, then step two would have automatically been double mastectomy straight away....but in my case it was 1. mastectomy of sick breast 2. gene testing 3. positive result = hysterectomy 3. second mastectomy on remaining breast.... A bit silly really that they just didn't test my genes first.
But what is done is done. We have to trust the system sometimes and there is really no point in working ourselves up over it (talking to myself...lol). I have learned to roll with the punches and take one day at a time, one surgery at a time and focus on healing from each step because lets face it this is a marathon and not a sprint.
You will be ok, and you will manage every day as it presents itself. We are all here for you for support and to vent, talk, ask, laugh, cry together when your family and friends don't always understand. Don't be too hard on them x
Keep us posted on your progress x