I have graves disease. After my rai treatment, I am now hypothyroid. What physical & emotional symptoms should I expect?

Hypothyroidism. Symptoms of hypothyroidism are: fatigue, hair loss, hoarse voice, trouble concentrating, slower speech, dry skin, brittle nails, feeling cold, weight gain, constipation...All of these should be temporary because your doctor should start you on thyroid replacement to bring the level back to normal. Some patients have no symptoms of hypothyroidism even when hypo.
Hypothyroidism. Check out http://www.Mayoclinic.Com/health/hypothyroidism/ds00353 for more info re hypothyroidism and its treatment. Watch out for fatigue, cognitive dysfunction, temperature intolerance, constipation, inability to lose weight, and more. Take your medication as directed (preferably at night on empty stomach) and be sure to check your levels periodically again as directed. Good luck!