Hello,  I can understand your concern. At this young age, it is better to go for ayurvedic treatment so that you are not dependent on direct external supplements.  Many times, thyroid disease are due to overactive adrenaline glands, which can be consequences of any physical/chemical/emotional stress. Ayurveda medicines concentrate on establishing harmony of endocrine glands. It includes correction of weight, stopping hair fall and alleviating other symptoms such as weakness, lethargy, increased sleep, infertility etc. This is how this treatment minimizes dependence on artificial hormones and stimulates thyroid gland to produce it's own natural hormone. At the same time, this treatment increases metabolic rate thereby helping maintain good weight over long term. If you are interested in this treatment, let me know her bowel movements and urination frequency in day and night time. Regards Dr. Omkar Balkrishna Shahapurkar