3 years post BBL with 3 big painful lumps. Can I get them removed?

Had lipo with fat transfer to butt and hips. I have 3 lumps. One in each buttcheek and one on left hip/thigh. Painfull to sit and lay on, so I mostly sleep on my right side. They are very hard and feel like a rock in my skin. The biggest one feels about the size of a golf ball. Can I get them removed even if they are so large? Should I go to a plastic surgeon or my primary doc?