Nexplanon

Has any women experienced chest pains? Like dull aches? Sometimes the pains will switch from right to left sometimes both . It’s not so much my actual boobs. I went to the ER and told them what was going on that I had the Nexplanon put in 8 months ago after having my daughter. Haven’t had any issues until about a week ago my chest starting feel sore. My implant hasn’t moved ... and the doctor I spoke with said “it could be hormonal changes causing the pain” but would that make your chest wall hurt or feel sore? Ache all day?