One week post BA surgery experiencing daily incision discomfort. Advice?

The main issue is to make sure you do not have an infection.  Without an exam, it will not be possible to fully evaluate you and give you recommendations.   Be sure to speak with you surgeon.

It is normal. It's likely not so much from your incision specifically or the stitches or the Steri-Strips although it will feel that's exactly where it's coming from. What you are experiencing is most likely related to the nerves regenerating. Obviously I would suggest contacting your primary plastic surgeon and following up with him or her.
 I tell my patients prior to their surgery to expect to feel some unusual sensations in their nipple, areola, surrounding breast skin and over their incisions afterwards and that it is totally normal and to be expected.
Personally I am a big proponent of gentle touch immediately following  breast augmentation surgery and really for ANY surgery. I instruct my patients to begin gentle touch on the same day of surgery, and to continue every day multiple times per day for several weeks.
For breast surgery patients I asked them to begin gentle, light touch over their entire chest, upper abdomen and toward their armpit when they first get home and to continue it everyday for the first several weeks. It may be performed by their partner as well.
For patients that experience more tingling, pulling, ripping, stretching, tearing, stabbing, burning sensations I have them start a more aggressive touch and de-sensitization program involving touching the entire operated region with six objects of varying touch. For example, I ask them to break a Q-tip in two and use the sharp end to gently touch along with the soft cotton tip end to provide two very different stimuli. They can use their fingers and hands in a very light almost non-touching manner and then in a firmer but not hard technique as well. Then I ask them to pick two other stimuli that they have around there house like the back of a hairbrush or even a new toothbrush and gently use those to also provide for different stimuli.
It may sound a little crazy at first to be rubbing your boob with a toothbrush,  but occupational and physical therapists and other health care providers have been using touch with multiple stimuli as a very effective method to desensitize nerves for decades. It is also widely studied and used for the treatment of complex regional pain syndrome and I personally have had a lot of experience with its use in hand surgery where you can see the benefits fairly rapidly.