I am thinking of discontinuing 2 prescription for thyroid,,,,,,Levothyroxine and Liothyronine. They are becoming more expensive and I don t know what they do for me.What change in my health can I expect? Iam 82, years old, daily swimmer, very active. My doctor told me I m fifteen years younger than my age. My dark hair is just starting to get some grey in it and my weight is normal.Dot Budinich