Hi SLAM,
I also have 良性的甲狀腺腫瘤 for many years. Actually, if you don't have any health problem, you don't need to 動手術. I don't trust 成藥。I have T4 problem last year and I consulted my chinese doctor I am recovered after 1.5 months. I know Chinese herbs can relieve 腫瘤 to some certain extent.
I have the same problem when I were about 23/24 years old. It was so sudden and goes to fast so decided to do a surgery and cutted 3/4 on 1 half. Because I don't want to take medical on and on.
SLAM: T4,T3,TSH 係一個指標去知道你的甲狀腺有無反常。Most of the doctors will suggest you to check once they found that you have abnormal symtoms (such as 腫瘤). For me, my T4 ratio is high which cause very fast heart-beat, bad temper, hard to sleep and lost weight.
So, you may take this test to see if it's function is still good. If yes, you don't have the urgency to take the surgery, but you need to check regularly your 腫瘤's size.
I've read a book, there are many cases recovered by Chinese herbs. So, I have confidence in chinese medicine indeed, especially when your problem is at the early stage.
Slam,
Sorry, forgot to answer your question. I don't need to 戒口, but my chinese doctor suggest me not to eat spicy as it will speed up my heart-beat which will then cause me even harder to sleep.