Unfortunately, each insurance company has their own criteria. Large breasts (macromastia) or breast hypertrophy can occur in a variety of conditions (family trait, post pregnancy, excessive adolescent growth). In general when the excessive breast size causes functional problems, insurance will...
You should make an appointment with your plastic surgeon for an in person examination as the symptoms you are describing could indicate a number of things. More pictures would be helpful, but having your doctor examine you and prescribe further treatment is probably necessary. Good luck!
It is impossible to say what size you will be after a breast reduction since every frame is different and every woman has a different idea about what bra size they wear. There really is no standard of measurement. 1200cc is a good amount of tissue, but how that will translate to p...