According to my blood tests it looked ok though cancer patients have normal blood tests right. I don't know how likely that is going hypo after a week and a half of Iodine but I guess its not impossible. All I know is I am in trouble barring some miracle turn around of these symptoms. I wish I would have known a little more then a few amazon reviews but I guess that's life. Seems like a pretty lame way for your life to end drinking Lugols for 12 days. I just pray I can overcome this