Is hardness and discoloration normal or should I seek treatment? Possible suture? (Photos)

I had a thigh lift in Jan 2024. I went to a well known practice here in Atlanta. I was not informed of any complications during the procedure.I did not have any difficulty until after the incisions were removed. Area was very tender. but I also felt pinching underneath my skin and one area near my knee would not heal. At my 4 week post op the doctor looked at it and said it was possible that a suture was still there. The scar is bad, I have discoloration and also hard lump in my other leg.