There was a thread on here a while ago about this shirt, I caved and brought it and not sure on the size, I brought the size ten as in the description it say its slightly oversized, I am normally a 10/12 i have a DD bust so shirts can be a problem , now I do love it but worried it could be two small, there is a little room under the arms, it doesn't pull on the bust there's no gap, if you have this shirt do you buy your normal size or did you size up?