15 years with breast implants & suspected ehlers danlos, is it a concern I can easily push implant to collarbone?

Dear Exuberant81784,
I understand your concern. However, without a proper assessment, it would be difficult to determine what went wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

With your Ehlers Danlos, you have stretchy skin. However, try not to keep pushing them up to your collar bone. If concerned, your surgeon could try an internal mesh bra to try and hold your implants in a tighter position.

In your case I think it's more of a perception. Due to the fact that with such an implant time they should not move in this way through the same capsule that they produce, I recommend that you evaluate yourself to see how you can help or perform an examination to see if you have any of these complications.