So this has happened to me twice in the past week or so. I start to accelerate then arround 40mph or so, the front end of my car starts to act like it has a flat tire or something...then it corrects itself a few seconds later. I mean this is insane. I have to clue what it could be. I mean it literally wobbles side to side violently. Not just a rattle, but back and forth like I have two flat tires. Anyone experienced this or know what it could be??