so had implant(nexplanon) put in on 20th oct however since its healed i keep getting a dull achy pain but not at the insertion site more like close to my armpit but not in armpit about an inch and half away but on side of my arm (bicep maybe) its not constant its now and again dont even have to be using it ....does anyone know why or if they had same thing? just curious it dont affect me too much as i dont use left arm much ....