Hi there,
I think you do have some mild degree of tuberous breast condition as characterised by the apparent "tubular" breast shape, deficiency in the lower breast poles, areolar "spreading" +/- herniation (hard to assess based on photos alone) and high riding infra-mammary folds. There are multiple factors which could influence your ability to breast feed and it'll unlikely be due to your tuberous condition alone.
Options for surgical correction could range widely depending on your desires and expectations of the ultimate aesthetic outcome that is right from you. They invariably involve surgical management of your nipple-areolar complex, reshaping & lifting of your breast tissue with or without volume adjustment, as well as tightening of the skin envelope in achieving a natural aesthetically pleasing result. I suspect a bilateral augmentation mastopexy (breast implants & lift) with a lollipop scar approach would provide an elegant enhancement while restoring your overall breast harmony & proportion.
In the absence of significant breast asymmetry, it can be difficult to assess whether you qualify for potential rebate from Medicare. It'll be best for you to seek a proper consultation in person with a specialist plastic surgeon to assess your situation from both clinical & logistical point of view. 
Hope that helps.
Best wishes
Ellis Choy