I strongly suggest a second opinion by a very reputable ortho even if you have to drive or fly to see. And you at minimum need new X-rays and maybe an MRI.
The sizing of the TKR is vital and also their may be problems with the glue not adhering or even an infection. One personal note. Before surgery I spoke to the doctor and said MAKE SURE IT IS THE RIGHT SIZE (please). He had to work with the rep and sure enough my actual size was in the 3 range. Very small.
My opinion is your problem is serious and damaging your quality of life and you need reputable help for a serious issue. I send you only my best in getting truly to the bottom of the matter.