What Causes Pain In Chest Between Breast While Having Breast Implants?

Hi I am a 31 year old female, normal bp & pulse I am a little over weight but not alot still in good shape, for the last month i have been haveing sharp to achey pains in my chest between my brest & under the right breast but still at the midline. they seem to be mainly at night while laying in bed but also durning the day now. I do have breast implants but these pains are under the breast. Just wondering if this is something to go be seen about