I had the same experience at VS - I just didn't feel like they were taking the time and knew what they were doing. Could be that I'm a gray haired grandma
Anyway, someone suggested that I go to Nordstroms. Now, mind you, I think Nordstroms is highly overpriced and I have only bought a FEW things there, ON SALE. But, I did go get fitted and I bought 3 bras from them and they are the BEST fitting bras I have ever had.
I DO NOT wear underwire either and Nordstroms has 3 styles of non-underwire. I bought all three and those are the only bras I wear now. I'm going to try on the Bali double support and the VX Ipex and see how they compare.
It really does make a difference when you wear the right size.
Good luck with your surgery. I had a biopsy years ago (benign), it is a stressful time.