It is completely normal to have different size breasts. It is common to have a difference of at least one cup size between the left and right breasts. So, what should you consider when trying bras for size?
How to get 'bigger boobs' - as online calculator leaves women stunned by their true bra size
How To Measure Your Bra Size
Breast Asymmetry: 9 Reasons You Have Uneven Breasts - HealthyWomen
If my bra is the right size, then why are my breasts uncomfortable in it? - Quora
Study Finds: The Truth About Breast Lift & Cup Size - Dr. Izaddoost
BRA SIZING, FIT GUIDE & MEASUREMENT CHART – PerfectDD
Justin Bieber And Auston Matthews Are Bringing Crocs Back In A Big Way - Narcity
If Your Bra Hurts… – Teal Inspiration
Finding the Best-Fitting Bra With Technology's Help - The New York Times