Are thyroid problems hereditary? My brother has had a thyroid condition for awhile now and I recently found out my grandmother has too I was just unaware of that. I’m 15 & I’ve been to the doctors already for anxiety issues & have been depressed for awhile now and I’m worried I might also have a thyroid problem. I was curious of when you go to the doctors about it what all would they have to do to determine if there was a problem with your thyroid gland? Thank you.