V40 2.0T moves to the left after driving on the motorway

Servus people, after I drove my V40 now almost 10tkm (now about 220tkm) something happened. We drove yesterday with a fully loaded car to Prague. The whole track due to traffic is quite smooth (180-200 kmh) but without any problems, almost like on rails. On the return drive the car has become very restless in a long right curve, has somehow swollen and since then pulls very strongly to the left (depending on the road tilt times more times less). We drove then immediately on the side strip and looked at the tires/wheels which were completely in order but at all other speeds were. At the last 100km we drove then with 90 behind a truck and finally also came home. Mistakes: 1. The car drives very swamy 2. The steering pulls strongly to the left 3. at 90 kmh the steering wheel jerks, but at all other speeds it is still quiet 4. The car swings fast – the steering has not tested both – There is nothing visible at the drive train to the left 3rd at 90 kmh the steering wheel can’s swings, but at all the other speeds I did not have a bit to change.