Hello, I wondered if someone could help me. My partner has a TSH of 0.7 and the below figures (see photo). She has low t3 and t4. To antibodies look normal. Symptoms are low body temperatures, reynaulds, constipation, infertility. Her vitamin D is low too even though she supplements. Is this a pituitary issue as her TSH is so low but t3 and 4 are also? It can't be hyperthyroidism can it? Thanks for your time.