Hello; Sounds like this issue was due to incorrect sizing, I would try to go up a cup size to eliminate the issue. Thanks for your feedback.
Sorry to hear that you experienced discomfort with your Lunaire garment. For future purchases we will gladly assist you by extending product knowledge so you can make the correct purchase for your lifestyle needs. Thanks for being a LUNAIRE customer.
Tryntje from NY USA
34DDD is equivalent to a 34F, we do have a sizing chart available on the site to help customers better understand sizing throughout the line. Thanks for your feedback.
Jan from Olmsted Falls,Ohio