Why is my sprinting animation restricting camera from looking up?

I am working on an fps game and for some reason when I have my sprinting animation play, while holding shift... it restricts the camera from looking up or down. I am able to look horizontally, but the vertical part is locked. Any ideas on how I can fix this?

I don't think my sprinting animation script is the problem.. but i will post it anyways just in case..

     function Update()
 {
  if(Input.GetKey(KeyCode.LeftShift))
  {
   // Plays the reload animation - stops all other animations
   animation.Play("sprintinganimation", PlayMode.StopAll);
  }
 }

Here is the running script:

 using UnityEngine;

using System.Collections;

/// MouseLook rotates the transform based on the mouse delta. /// Minimum and Maximum values can be used to constrain the possible rotation

/// To make an FPS style character: /// - Create a capsule. /// - Add the MouseLook script to the capsule. /// -> Set the mouse look to use LookX. (You want to only turn character but not tilt it) /// - Add FPSInputController script to the capsule /// -> A CharacterMotor and a CharacterController component will be automatically added.

/// - Create a camera. Make the camera a child of the capsule. Reset it's transform. /// - Add a MouseLook script to the camera. /// -> Set the mouse look to use LookY. (You want the camera to tilt up and down like a head. The character already turns.) [AddComponentMenu("Camera-Control/Mouse Look")] public class MouseLook : MonoBehaviour {

public enum RotationAxes { MouseXAndY = 0, MouseX = 1, MouseY = 2 } public RotationAxes axes = RotationAxes.MouseXAndY; public float sensitivityX = 15F; public float sensitivityY = 15F;

public float minimumX = -360F; public float maximumX = 360F;

public float minimumY = -60F; public float maximumY = 60F;

float rotationY = 0F;

void Update () { if (axes == RotationAxes.MouseXAndY) { float rotationX = transform.localEulerAngles.y + Input.GetAxis("Mouse X") * sensitivityX;

rotationY += Input.GetAxis("Mouse Y") * sensitivityY; rotationY = Mathf.Clamp (rotationY, minimumY, maximumY);

transform.localEulerAngles = new Vector3(-rotationY, rotationX, 0); } else if (axes == RotationAxes.MouseX) { transform.Rotate(0, Input.GetAxis("Mouse X") sensitivityX, 0); } else { rotationY += Input.GetAxis("Mouse Y") sensitivityY; rotationY = Mathf.Clamp (rotationY, minimumY, maximumY);

transform.localEulerAngles = new Vector3(-rotationY, transform.localEulerAngles.y, 0); } }

void Start () { // Make the rigid body not change rotation if (rigidbody) rigidbody.freezeRotation = true; } }