2003 Pontiac Grand Prix drivetrain passenger control arm

Ok so I went to rotate the tires due to a pulling and vibration problem o thought may bee hub assembly and while I was putting the wheel back on I noticed that the studs weren't straight with the rotor and I went to tighten the lugnuts and the whole rotor hub assembly spun I tired tightening the hub nut because the rotor looked like it wasn't tightened completely so I did and it didn't fix the problem it got so bad that tonight while I was driving home from work on the highway I felt like I had a flat tire so I stopped and checked it out that wasn't the case so I went home it got worse and worse so bad that I took a servicer road and could feel the problem even at 30 ish miles I have to drive it to work what it does its pulls hard vibrates and shakes now it feels like the wheel may fly off when im drivin I parked it please help me