Screen keeps doin flips after i add a rigidbody to the player and turn

Unity Engine
1

I just added a RigidBody to my player its working fine only if i turn the player only slightly my screenj starts doing flips and shaking as if the camera is being thrown down a mountain lmao. Pls send help

2

Also i start flying. I move my mouse a bit and the background keeps doing flips

3

pls help me