Hello 'ronwe', thanks for your question and photos. Based on the classic description, yes, you appear to exhibit grade 2 ptosis, which is a milder level of breast sagging. This is characterized by the nipples sagging below the inframammary fold but still not yet pointing down at the lowest point of breast curvature. Breast ptosis is a common phenomenon in women, which may be caused by menopause with involution of the normal mammary ductal structure, lost breast volume after pregnancy or significant weight loss as in your case, or simply with the cumulative effects of gravity and aging with thinning and stretching of the dermal and ligamentous support system. If this droop is something that bothers you, then it can be addressed with a breast lift procedure (mastopexy) and/or a breast augmentation that can provide a mild lifting benefit while augmenting the breast volume with the implant. Feel free to contact my office for a consultation if you would like to discuss your options further. Good luck!-Dr.Go