Starting My First Water Fast Today!

Hey Everyone,
Today Im starting a ten day water only fast, and I was wondering what I should expect. Ive read that the first three days are always the hardest as far as hunger and temptations, and that when your body begins detoxing you may experience some symptoms,but Im very determined to complete the full ten days, any personal experiences? Did the benefits from the fast live up to expectations? Im 5'5 and 137 pounds, any information would be appreciated :) Thankyou!