Hello. I had a total thyoidectomy in 1995 and have been on a suppressive dose of Levothroid ever since. I have already developed osteoporosis, which I have been told is most likely connected to the Levothroid dosage. Recently, I have been reading about an additional connection between high thryroid hormone levels and Alzheimer's Disease. I am extremely concerned about this issue. If you can give further information, I would be very grateful. Thank you.