Why my character spread when moving?

When I move my character, it spread like you see on pictures.

Here is RigidBody and Box Collider picture: http://prntscr.com/9apfl3

Script:

using UnityEngine; using System.Collections;

public class Player : MonoBehaviour {

 public float speed = 8.0f;
 public float maxVelocity = 3.0f;

 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {

     GetComponent<Rigidbody2D>();

     float force = 0.0f;
     float velocity = Mathf.Abs (GetComponent<Rigidbody2D>().velocity.x);

     float h = Input.GetAxis ("Horizontal");

     if(h > 0) {

         if(velocity < maxVelocity) 
             force = speed;

         Vector3 scale = transform.localScale;
         scale.x = 1;
         transform.localScale = scale;
     } else if(h < 0) {

         if(velocity < maxVelocity) 
             force = -speed;

         Vector3 scale = transform.localScale;
         scale.x = -1;
         transform.localScale = scale;    

     }

     GetComponent<Rigidbody2D>().AddForce (new Vector2 (force, 0));
 
 }

}

Can someone tell me where is a problem here?

Thanks.