I just remembered now..

I had kinda similar issue with the rear wheel.. It was bouncing like the wheel was bent and noone could tell what was wrong with it..

Mechanic told to replace the bearing.. I did it myself and replaced the brake pads..

and discovered that the brake cylinder was pushing and not releasing the pressure, thus kinda holding brake rotor and making wheel spin unevenly.. Try to inspect ur brake pads to see uneven wear comparing left and right wheels. Or it might be suspension bar....... strut mount