No. Are you a twin?
No, but I have a friend with similar interests.
That's close enough.

CASTRATION PROBLEMS
From E-How: Thyroid Problems: The thyroid glands are positioned in the trachea underneath the larynx. The hormones that are manufactured by the thyroid gland control a mammal’s functioning metabolism. They also affect protein, lipid and carbohydrate levels. The thyroid glands, therefore, are vital to the body's overall system maintenance. The symptoms of thyroid disease in mammals include fatigue, lack of interest in activity, loss of focus, weight gain, skin infections or a change in nature, such as becoming aggressive.