Wow - glad you bumped this - I missed it before.
WildIris - I also have a thyroid nodule - a large-ish one that has been there for about 15 years now. It recently started swelling a bit (I have that tight, something it stuck in there feeling - hate it!) and I've been trying to find info about how to shrink it with diet/herbs/etc. I have had 2 or 3 biopsies in that time that were thankfully negative but I get nervous when I feel any swelling going on. I'll check out the board you mentioned but was wondering if any natural treatments have worked for you. In the past it hasn't been quite big enough to bother me, so my ND and I (as well as the specialist I had seen) decided to'watch it but leave it be'. But now it is really annoying me My hormone levels are in the normal range.
Keep in mind that I am no expert here and not giving you medical advice, blah blah blah disclaimer. :-) But what I have read about shrinking nodules is that can be helpful to keep the TSH suppressed (below 1) and keep the Free T4 and Free T3 at the top end of the normal range, like the top third of the range. My doctor concurs with this and this is the approach we are taking, knowing that it doesn't always work but sometimes does. I can't remember the statistical percentage of how often this works; something like 40%?
However, my nodule started to shrink before I started taking thyroid meds. I tried a lot of natural approaches (diet change and supplements) first, and saw a "slight but significant decrease" (that was the wording of my follow-up ultrasound report) in the nodule size. What I felt was key for me was avoiding dietary iodine (I know that ingesting excess iodine had contributed significantly to the growth of my nodule in the first place), taking selenium (100-200mcg/day), and other anti-inflammatory supplements like Vit C, MSM, and Vit E. I also try to keep my diet pretty clean of inflammatory foods, like sugar and excess grains.
You say your hormone levels are in the normal range; could you post lab numbers? They may be "normal" but not necessarily "optimal" for you, kwim? My numbers have never not been normal, but they are not ideal. Also, if you have certain antibodies they can mimic the TSH and skew the lab results, making everything look "normal" when it's not. So you have to go by the Frees (T4/T3) not the TSH. Sorry for the overly-simplistic explanation but it's late...
Please note that I am not anti-iodine; that might be the very thing you need to shrink your nodule. Maybe you could do a trial both ways--eliminate it for a month, and add it for a month, and see if you notice a difference?
The other thing to consider is food allergies. This is a whole new area for me, but I just found out last week I have a corn allergy. In just a few days of eliminating all the sources of corn I can find so far, I notice my throat feels a lot better. So I have to wonder if symptoms I have been attributing to my thyroid were actually caused by this food allergy? i.e., my throat swelling up because I'd ingested my allergen, not my thyroid swelling up or nodule expanding.