My tsh is 0.99 but the dr said that i have a goiter. i have cold feet. unexpected weight gain. dry skin. palpitations. carpal tunnel. 29 yr old female?

Non-specific: Tsh of 0.99 suggests normal thyroid function. I dont have your free thyroxine level to confirm this. Your symptoms are non-specific. Unfortunately, when patients have the classic symptoms of hypothyroidism they only actually have it 30% of the time. That speaks to the lack of specificity of the symptoms you are having. Again though a T4 level would be needed to rule out central hypothyroidism.