My daughter is 14 and her T-4,Free level is 1.5. Her doctor is concerned because she said it is quite unusual for a teen to have an elevated thyroid. We are going to have a thyroid ultrasound done. The doctor also said this could be the cause of her wild mood swings. Although they are also talking about Bipolar disorder because of her symptoms and family history.
How rare is hyperthyroidism in young teens, and what other symptoms would she experience?
Her TSH was 2.86 and her Thyroxine total was 9.8.
Thank you.