FPS Hands and Arms look way too stretched and weird when looking up or down

Hello gamedevs, so I was making my first fps game when I noticed that my character arms and hands stretches out when I look up or down. I really dont understand why this happens, I parented the arm model to the camera so that it moves with it, but then this happens:

Normal view:

Looking up:

I’m using the default MouseLook script from the fps controller and didn’t do any changes to it. Can you give me any idea on how i can solve this problem? thanks a lot.

I found it, I was stretching my First Person Controller graphics in the Y-axis.