My 15 y/o daughter t3 one point below normal. Anxiety, depression, hands tremors, irritability, dialated pupils evening Upon waking & on & off through put the day and when stressed I see her pupils get bigger. Occational dizziness. Started in November, it it now June. Tests showed low D, iron deficiency, low ferritin, low end of normal B. Tsh & t4 normal. T3 one point below normal. Drs put her on 20 mg prozac (her m.d didn t know what to do for her) then referred to psychiatrist who switched her to 125 mg zoloft. But eyes are still dialating on and off. Hardly ever at a normal pupil level. Hemotologist said not from iron deficiency. Neurologist said not seizures.When the pupils dialating and anxiety started in November (she may have had depression before that) . She was pale, low appetite. Didn t want to talk. Tired, always tired. Low energy. Suicidal thoughts. A bit Better w/talk therapist. No one has been able to figure this out. M.d didn t want to refer to thyroid dr. When I insisted their office said peds thyroid dr.wanted another t3 done (this was days after, to see if the t3 really was low. My daughter refuses to see anymore doctors. I worry every day.