Which of the following results from an overactive thyroid gland?

If your thyroid is overactive, you might feel very restless, lose weight without trying, and your heart might race. It's important to get tests done like TSH, T3, T4 and follow the doctor's treatment plan. Don't self-medicate.

I ignored my sudden weight loss and constant anxiety thinking it was just stress, but it turned out to be an overactive thyroid. Please, if you have these kinds of symptoms, get a full thyroid panel done. Early diagnosis saves so much trouble.

My daughter had hyperthyroidism. She was always hot, even in AC, and lost so much weight. Her hands would shake sometimes. It was scary, but with medication, she's much better now. Keep a close eye on these symptoms and see a pediatric endocrinologist if it's a child.

So an overactive thyroid means your body goes into overdrive, right? I read that things like feeling irritable, having trouble sleeping, and even muscle weakness can happen. It's like your internal engine is running too fast.