Your carbohydrate cravings will go away and energy will come back.
You will feel full and not really need to eat three meals to exist. You will notice your taste and smell change.
You will notice changes in personality. You will become more thoughtful and mindful. You wont be as explosive in an explosive environment. You feel like you are warmer and exude body heat but your body temp will actually be lower and it will trend lower over 18-24 months while you thyroid settles into it new biologic groove. Your sexual desires will change and your libido will awaken. Your sleep will dramatically improve. Your migraines will improve slowly over time. Your muscles will begin not to kill you when you exercise after the rest. Your hair and nails will improve in color and presentation. Your pedicurist will notice you have less dead skin on your heels and you face. Your skin will soften and your skin color will change. Your energy level will gradually improve over 6-12 months. Your spouse will begin to notice things and treat you differently.