Having this happen over medication, you might talk to a lawyer about a possible court case to get money for damages. This would pay for your surgery. Seems the drug companies are at fault, if it were truly the meds that did this.
Another idea would be to start exercises to possibly change the shape. Ever see a professional dancer with big boobs? Their body positions and exercise have something to do with that; arms over the head a lot comes to mind.
Hope this helps. BB