My tsh is currently 0.02, has been dropping for the last three tests over 9 months. 0.43, 0.04, now 0.02. My t4 and t3 are within normal range, but rising slowly. I have a large (benign) 6cm solitary nodule on the left side of my thyroid. I am experiencing palpiations, rapid pulse (often around 120 at rest, my usual is 65-70), shakiness, etc but my doctor refuses to refer me or treat me. she says since my t4 and t3 are fine, it's nothing to worry about and not at all related to my nodule. I saw an ENT for the nodule, but he refuses to treat it or refer me for the tsh, he says that it's only mildly low, and would only be a worry if it rises!!! I'm at a loss, having exhausted every avenue on the NHS, and can hardly afford private. But the fast heart rates, palpiations and shakiness is worrying me. What do I do?