Breast Implants: Stories

I am a half Asian and half Caucasion female, 5'4'' 117lbs, in my late 20s and just had a sub-muscular breast augmentation through inframammory incision on Sep. 24th. I am very active and a classical ballet dancer so I chose silicone implants at 290cc.

I have never given birth so my chest was very uncomfortable and painful for about a week. They took off the tight bandage wrap after 7 days. From that day, I was told to massage them twice a day for 20min each. My breasts were too sensitive at first so I did not fully massage them, but it has gotten better within the past week.

Since I am only in my 3rd week, I know they are still healing, but I am concerned the are not healing properly. My left breast seems to have a bubble-like pocket next to my incision towards the sternum and it's dropped slightly lower than my right. I've read that I could still "adjust" the placement of the implants if I massage them correctly; however, I have not received any guidance or tips on this.

I have not been wearing a bra since my breasts are sensitive, and I feel that this could have caused the left to drop, perhaps bottom-out. Do I need to wear a wireless or sports bra? Are there any tips on massaging? Also, when can I start dancing again? I was told 4 weeks from my surgeon, but I tried lifting my arm above my head and leaning back, but the skin underneath my breasts were being pulled and I was afraid they would result in stretch marks or tear the incision. Are there any massaging tips for this as well?