Help needed playing sound after 5 seconds randomly

[aaitogacha]

Hey so i need help.

I want to make so the player would giggle after 5 seconds when their sanity is less than 30.

I have multiple sounds that i can use and i want them to play randomly.

Here’s the script:

using System.Collections;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class sanity : MonoBehaviour
{

    public RawImage vignetteUI;
    private float transparency;
    private float spinerotation;
    private float armsrotation;
    private float InsaneGiggles;
    private float twitch;
    public int sanitynumber;
    public AudioSource GiggleSource;
    public AudioClip[] SanityGiggles;
    public TextMeshProUGUI sanityindicator;
    public PlayerController mymovement;
    public sanity Sanity;
    public Texture normalface;
    public Texture lowsanotyface;
    public Material headmaterial;
    [SerializeField] private Transform spine;
    [SerializeField] private Transform leftarm;
    [SerializeField] private Transform rightarm;
    [SerializeField] private Transform head;

    void Start()
    {
        sanitynumber = 100;
        StartCoroutine("facetwitch");
    }

    void Update()
    {
        sanityreturn();
        spinereturn();
        armsrotationreturn();
        InsaneGigglesreturn();
        sanitynumber = Mathf.Clamp(sanitynumber, 0, 100);
        sanityindicator.text = sanitynumber + "%";
        vignetteUI.color = new Color(0f, 0f, 0f, transparency);
    }

    void LateUpdate()
    {
        if (sanitynumber <= 90 && mymovement.enabled)
        {
            spine.transform.localRotation = Quaternion.Euler(spinerotation, 0f, 0f);
            leftarm.transform.localRotation = Quaternion.Euler(0f, 0f, armsrotation);
            rightarm.transform.localRotation = Quaternion.Euler(0f, 0f, armsrotation / -1f);
        }

        if (sanitynumber <= 40)
        {
            head.transform.localRotation = Quaternion.Euler(0f, 0f, twitch);
        }
        if (sanitynumber < 100)
        {
            headmaterial.SetTexture("_MainTex", lowsanotyface);
        }
        else
        {
            headmaterial.SetTexture("_MainTex", normalface);
        }
    }

    private float sanityreturn()
    {
        if (sanitynumber <= 100)
        {
            transparency = 0f;
        }
        if (sanitynumber <= 80)
        {
            transparency = 0.2901961f;
        }
        if (sanitynumber <= 60)
        {
            transparency = 0.4117647f;
        }
        if (sanitynumber <= 40)
        {
            transparency = 0.6686275f;
        }
        if (sanitynumber <= 20)
        {
            transparency = 0.8686275f;
        }
        if (sanitynumber <= 10)
        {
            transparency = 1f;
        }
        return transparency;
    }
    
    private float spinereturn()
	{
		if (sanitynumber <= 100)
		{
			spinerotation = 0f;
		}
		if (sanitynumber <= 80)
		{
			spinerotation = 1f;
		}
		if (sanitynumber <= 60)
		{
			spinerotation = 2f;
	        }
		if (sanitynumber <= 40)
		{
			spinerotation = 4f;
		}
		if (sanitynumber <= 20)
		{
			spinerotation = 6f;
		}
		if (sanitynumber <= 10)
		{
			spinerotation = 8f;
		}
		return spinerotation;
	}

	private float armsrotationreturn()
	{
        if (sanitynumber <= 90)
        {
            armsrotation = 72f;
        }
        if (sanitynumber <= 80)
		{
			armsrotation = 70f;
        }
		if (sanitynumber <= 60)
		{
			armsrotation = 68f;
        }
		if (sanitynumber <= 40)
		{
			armsrotation = 65f;
        }
		if (sanitynumber <= 20)
		{
			armsrotation = 60f;
        }
		if (sanitynumber <= 10)
		{
			armsrotation = 60f;
        }
		return armsrotation;
	}
   
    private IEnumerator facetwitch()
	{
		twitch = Random.Range(44.03f, -44.03f);
		yield return new WaitForSeconds(0.05f);
		twitch = 0f;
		yield return new WaitForSeconds(0.2f);
		twitch = 0f;
		StartCoroutine("facetwitch");
	}
    
}