Could I be allergic? What's in there? I get hive recurrences on my right breast. (Photo)

I was reading how being allergic to the silicone breast implant is unlikely. How ever i get hive recurrences on my rt breast and only that one. They itch and raise. I also notices at the top areola of that one i can move something there, its kinda solid. If i push one side it goes up on the other side. No pain, no deformation. Any idea of what it might be??