Hi, I had the same issue. I phoned up the nurse. She says it’s completely normal. We might be pain free and looking like all healed but on the inside things still need time to heal, get back to normal. She also said that if there would be something to worry about it would be visible and we would know straight away.
I was pain free too and nowadays I’m getting weird sensations. Also, since op my left was bigger and harder. I just noticed the left dropped a bit and much softer than the right now. I’m 4 wpo today.
Hope this is helpful. Good luck ! 🙂