Is tightness normal 1 year post op? 300cc under muscle silicone implants (Photo)

Hi! I had my breasts done Dec 2020. I have 300ccs under the muscle silicone implants and went from a 32a to a 32c/d. My breasts look symmetrical and feel soft and normal. I have no pain or anything but when I lift my arms above my head I feel a "pulling"/tight sensation in my right breast. I sit hunched at a desk and am right handed. Seems to go away for the most part if I stretch/massage but is kind of off and on. Is this normal?