Hi Blanca and welcome to NeuroTalk.
I've posted the link to the Autoimmune Conditions Forum for you in case you haven't visited there yet. It should give you some information regarding Graves Disease.
http://neurotalk.psychcentral.com/forum44.html
I'm sorry about your diagnosis but glad you found this site. There are lots of caring and supportive people here who are happy to have you join us.