Pain around belly button 3weeks after gallbladder surgery. Been good till this week.?

See your surgeon. Pain at a laparoscopy site is part of the surgery, but it generally continues to improve rather than returning or worsening. Evaluation needed.
Check it out. This could simply be a small suture abscess from the laparoscope port or could be a small opening or suture reaction. However it could be indicative of a more significant underlying condition. Discuss with your surgeon.