Any regrets after going flat?

I'm a uni-boober @abbydog so not sure if my opinion cuts it.  I don't have any issue with bras other than that I hate wearing them but am in a position where it looks decidedly odd if I go outside the house without one.  If the bra thing is causing you so much difficulty and discomfort, I can't see why you wouldn't get rid of the other boob and it will save the annual anxiety.  Of course, any surgery comes with risks and you may want to think about the style of clothes your favour as women's clothes are often designed to shape around breasts (sounds vain but as an adult you will have developed your style of dress that expresses how you present to the world).  Always two sides, unfortunately, but I think in your position I would probably opt for going flat.