Hello everyone! Can you tell me who has had a pentasim implant, have …

Hello everyone! Can you tell me who has had a pentasim implant, have you ever experienced a lump that took a long time to go away? We put one in last Monday, and it's still there, we haven't had this problem before with previous three times. We've seen both a surgeon and an ultrasound specialist, they said nothing serious, but they didn't specify what it is.