I need help with my 2D Sprite spazzing out when turning.

Ok, so I have an enemy that patrols between two points, what I need it to do is flip the sprite when it reaches the endPos and flip again when it reaches the startPos, but whats happening is the sprite just repeatedly flips and this makes it look like its spazzing out. here is the code:

 using UnityEngine;
 using System.Collections;
 
 public class PingPong : MonoBehaviour {
 
     public float moveSpeed = 2f;
 
     public bool facingSwitch = false;
 
     float startingPos;
     float endPos;
 
     public int unitsToMove = 5;
 
     bool facingRight = true;
 
     Animator anim;
 
     void Start ()
     {
         anim = GetComponent<Animator>();
     }
 
     void Awake()
     {
         startingPos = transform.position.x;
         endPos = startingPos + unitsToMove;
     }
 
     void FixedUpdate()
     {
         if(facingRight) 
         {
             rigidbody2D.velocity += new Vector2(moveSpeed, rigidbody2D.velocity.y);
         }
 
         if (rigidbody2D.position.x >= endPos)
         {
             facingRight = false;
         }
 
         if(!facingRight) 
         {
             rigidbody2D.velocity -= new Vector2(moveSpeed, rigidbody2D.velocity.y);
         }
         
         if (rigidbody2D.position.x <= startingPos)
         {
             facingRight = true; 
         }
 
         if(rigidbody2D.velocity.magnitude > moveSpeed)
         {
             rigidbody2D.velocity = rigidbody2D.velocity.normalized * moveSpeed;
         }
 
         if(facingRight && moveSpeed > 0.1)
         {
             facingSwitch = true;
             anim.SetBool ("Turn", true);
         }
 
         if(!facingRight && moveSpeed > 0.1)
         {
             facingSwitch = false;
             anim.SetBool ("Turn", false);
         }
 
     }
 
     void Flip()
     {
         facingRight = !facingRight;
         Vector3 theScale = transform.localScale;
         theScale.x *= -1;
         transform.localScale = theScale;
     }
     
 }