Noticed that one of my implants really sag to the side under my arm pit when lying down. Do I have lateral displacement? (photo)

Recently I have noticed that one of my implants really sag to the side under my arm pit when lying down and it leaves like an empty saggy skin on the top, where as my other one is completely still firm and stays on the top of my chest. They seem to differ in shape and size and one causes me a lot of discomfort and some pain when lying on my side. When I lift my arms up I can feel my right implants every move.