I bought 42DDD/G bras due to recommended size on calculator. So much extra space at the tops of the cups. Where do I go from here?

I am finally taking the time to post to see if I can find a bra that fits after 25 years of searching. Any help or recommendations are welcome!

I do have excess skin under my arm pits and I think sometimes that's taken into account when calculating my cup size. My breast are bottom heavy and so sometimes there seems to be a lot of space at the top of the cups even after I scoop and swoop. I bought a few bras to test the fit and they all had that issue.

Current size (according to calculator, all in inches):

• Loose UB: 43
• Snug UB: 42
• Tight UB: 41
• Standing: 48
• Leaning: 53
• Lying: 45.5
• Suggested starting size: 42DDD/G

After having my kid I find wireless bras to be more comfortable but I am open to wired as well.