Do I have tuberous breasts or are they just saggy? (Photo)

Yes you do, slightly more so on the right. However, less than very severe cases with breast tissue pushing into the nipple complex. I am not sure what you mean by done. If you just put in implants I don't think you will be happy because the main issue appears to be asymmetry, breast shape and stretched areolea. Even if you were to put in 2 different sized implants I don't think it will completely address these issues. Your best option may be releasing incisions in the breast tissue and fat grafting around the edges.I hope you realize that this format of posting questions and receiving answers lacks the face to face direct communication required for you to make an informed decision regarding your surgery.
My response to your question/post does not represent formal medical advice or constitute a doctor patient relationship. You need to consult with i.e. personally see a board certified plastic surgeon in order to receive a formal evaluation and develop a doctor patient relationship in order to know if this assessment is valid.

Dear Candyrocks:  There are a variety of conditions which make up the broad term of "tuberous breasts".  It appears form the photos you presented that you demonstrate one of them, which is a constricted breast base.  You will likely require a breast lift along with implants to improve this but I'm confident you can achieve a very nice result.Best of luck to you! G. Robert Meger MD