6 weeks post-op breast aug and my nipples are super sore and sensitive, is this normal?

There are two common reasons you would have sore nipples.  One is that placing an implant stretches the intercostal nerves which provide sensation to the breast and nipple and these nerves have altered activity, either decreased or increased until they heal.  And two, the implant has made the breasts more firm and added projection, so likely the nipples are suffering from more friction than they used to.

Dear blr2014,soreness of nipples is very common. It depends on the operation but often times normal sensation can return in a couple of weeks, a year, or not at all.  Nipple sensation itself is very important and can sometimes be changed with breast surgery. This is often mentioned in the risks of the consent process. I imagine your soreness is just temporary although I would have to examine you.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery

Thank you for your question and congratulations on your surgery!  After an augmentation the nerves of the skin are stretched as a result of swelling and the increased volume of the implants.  This stretching irritates the nerves which can cause a number of different nipple and breast skin sensations including increased/decreased sensitivity or a burning/electrical feeling.  As the stretching and swelling resolves so will the burning sensation.  Hang in there and be sure to mention these issues to your surgeon during your post-operative appointments.