I bought a used Toyota Camry 2012. It has 40,000 miles on it now, The car shakes all the time. It feels like the front wheels are vibrating, and the suspension is bouncing all the time. At slow speeds, and it gets worse at faster speeds. All I can say is that it is very uncomfortable drive. When I bought the car a year ago it had a very luxurious ride. Now it feels like there is something very wrong. Enough wrong so that I do not even want to drive it anymore. I have taken it to 4 different Toyota dealers, and one private mechanic. All say that there is nothing wrong with the car. I don't understand why they are saying that. Is there anything I can do? I think I am going crazy because nobody (except one friend) can feel the same thing I'm feeling. I don't know what to do.