Im 19, 2months i will be 20. i am 41.9kg and currently wear a 32a bra. i have scoliosis but i dont think that should affect breast development. i have one breast bigger than the other my mum says their isnt much difference but i think otherwise anyways i feel so depressed and i hate my body because im so thin and clothes dont look good on me and i dont feel womanly. so if gain weight will my breast grow and will they eventually even out and become the same size?
No, scoliosis should not effect breast development either in the positive or negative.
It is normal for one breast to be slightly larger than the other but, if the difference is pronounced, consult your physician.
With a wt of about 42K you are obviously a petite woman. Large breasts would look abnormal on you. Yes, you could stand to gain a little weight and your breasts would probably grow some(not much). At 20 yrs old One would expect you to weigh more. How tall are you?
Also if you gained some wt.(maybe up to about 60K) clothes would probably fit better and look nicer on you.
If you are depressed, you likely don't feel like eating much and this doesn't help. I think you should discuss these feelings with your Dr. Your Dr. can help you explore how severe these feelings are and if treatment with medication, counselling or just reassurance is needed.