My car starts shaking as soon as it hit 70 and wen i hit a bump da car feels like it swerves?

Hi, i am currently training and have done 4 years working with cars. to me this sounds like 2 different problems. The problem with the shaking at high speed is that the wheels are incorrectly balanced. Now the swerving sounds like a steering problem or maybe even something as simple as a tyre under inflated. I hope this has given you a rough idea of whats wrong. But your best bet is take it to a local garage.