I had a hemithyroidectomy for Hashimoto's 10 years ago - my endocrinologist believes in complete TSH suppression with Hashimoto's and I've always trusted him as he's been in practice for 40 years and a full prof at a med school for 30 years. However, my GI doc who I've been seeing for symptoms of a possible neuroendocrine tumor (diarrhea, flushing, elevated serotonin and uptake on the Octreoscan) insists that all of my symptoms can be explained by my almost undetectable TSH and slightly elevated T4 (T3 in high end of normal range) - he insists that even my elevated liver function tests can be due to the low TSH but this seems to be the exact opposite of what I read online. Do you have any suggestions on how to manage the TSH in a Hashimoto's patient and whether these symptoms are likely caused by the T4?