Not long ago, I had a horrible goiter- multi nodular - which now is gone! A therapist gave me the solution: one cup of walnuts - ground-up, one cup of buckwheat and one cup of honey, mixed together; the buckwheat must be soaked in hot water and left with a lid - for about an hour; if you ask me, I thought one cup of honey was too much, so I used as much as to give a sweet taste to the mixture -a few teaspoonfuls - and eat that during one day, divided into as many meals as you want - 3-4, and for at least six weeks (and, of course, nothing else). I did this for 7 weeks (and still do) when one day day my husband said in surprise: where is your goiter?! it was gone! the horrible mass around my neck was gone! And I still eat buckwheat several times as it's very healthy and it's gluten free, of course! I had nodules, too, they have become smaller, now I have to have an ultrasound to see what happened.
Try it and let me know what happens, nothing to lose!