Had my cheeks filled with HA over 2 years ago, now notice blue bruises on cheeks after tiny pressure. Advice?

Hello, I had my cheeks filled with HA over 2 years ago (3 ml right, 3 ml left, in a 4 month span) and had no problems since. Now few weeks ago, I noticed that they sometimes get swollen, even just pressing there a tiny bit, I get blue/violet bruises on my right cheek. I’m scared that it’s something dangerous Thank you