I'm still trying to figure out what size I am 
I ordered two Curvy Kate bras in 30D from the Brastop sale after somebody mentioned it on here. They are gorgeous! One was clearly too small in the cup so I'm returning it. I re-ordered this one in 30DD along with a couple of others in that size.
The other I thought was fine, so cut off the tag and wore it yesterday to work. The band felt fine, really supportive, didn't ride up when I lifted my arms. BUT by halfway through the day the wires were cutting in at the sides of my breasts, which was uncomfortable, and at the front, in between them, which was REALLY uncomfortable. It was sort of pressing on my breastbone. Couldn't wait to get it off 
Anyway, the second order, of 30DDs, arrived today, and all are pressing uncomfortably on my breastbone in the same way. So my question (before I re-order again!) is: is this a sign the band is too small? It seems to fit fine and doesn't feel too tight anywhere else . Do I just have a weirdly bony chest or something? What size should I try next? I'm thinking 32D? These bras are soooo pretty, I just want some that fit 
Measurements if it helps: 29.5 under, 33 over.