Hi @JayMB
Things have changed a great deal since my first diagnosis in 2006. At that time, there was a definite reluctance (particularly in regional areas) to offer a DMX. I had to travel to Melbourne to find a surgeon who was willing to do what I wanted.
I've never regretted getting rid of the treacherous 'good' boob. It most certainly wasn't my friend as we all discovered when it finally made its way to the lab. Even if it had been deemed to be be nonthreatening, I would never have been able to relax while it was sitting there, in plain sight, potentially cooking up a storm.
Reconstructive surgery has changed a lot since then too. I sometimes wonder if it's gone a little too far when it comes to offering elaborate solutions when some of us would just like a set of tits under our shirts and are not too worried about whether they look and feel like 'real' ones. The overall impact on our bodies while striving to look 'natural' may also be sidelined to a degree. These are really significant operations that can have serious complications. Or not. Depending on factors we can't control.
I'm sure that there are some people who regret getting rid of both, but I've never met anyone who has told me they wished they had made another choice when that was what they decided to do. It all depends on your circumstances and the advice you have been given.
It sounds like there has been a degree of synchronicity about your diagnosis. I think you should follow your heart from now on. Which is no way a scientific approach. Mxx