I’m in the same position! And I’m terrified, I can feel lumps and is very painful on my right breast. I’m even getting numbing in my right arm abs fingers. I’ve been referred to get a ultrasound by my GP to figure out what is going on. If it is a rupture you can get them replace but I believe both breast must be replaced, I’m not sure on the extra cost though. I’ve had mine in for 3 years 🙁 I hope it all goes okay for you, keep me updated xx