hi,
with tsh of 120, you are severely hypothyroid. Diet will not help - you need medication. Quite urgently! i hope you are working with your dr on this.
Go to page top, click on Forums. There are Thyroid forums on each side of the page. Dr Lupo moderates on "Ask A Doctor". Post there and provide more information if you expect him to answer.
Ok, first of all this is a diabetes forum. Second of all if you are severely hypothyroid it needs to be managed with medication, not diet. See your doctor.