Just a small note, Lamictal does not cause thyroid problems.
One less thing you can eliminate from things leading to your thyroid problem.
See, what your final results are, medication, can help alone, some need surgery for nodes.
I have a cousin who had to have his thyroid removed and now lives on thyroid supplements.
I also had a friend with thyroid cancer, again the thyroid and para thyroids were removed and she too, has been on supplementation, luckily she did not require any radiation or chemo.
As a little re assurance, let it be known thyroid supplementation is an alternative and helps immensley.
Lots of luck with this, let us know how it all goes.
Sincerely,
DE