Still others were diagnosed with long-term health conditions such as Crohn's disease, psoriasis, rheumatoid arthritis and thyroid disorders.

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Aware that diagnosis of thyroid disorders among athletes is increasing, Catlin said he suspected that the some athletes were using the medication to enhance performance.

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Former reporter Susan Yara took the Biophysical250 test after years of low-level but persistent digestive discomfort that was never accurately diagnosed, despite numerous tests for thyroid disorders and irritable bowel syndrome.

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As well as infertility, Turner Syndrome also causes growth problems and is associated with heart, kidney and thyroid problems, bone disorders and hearing and ear problems.

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Endocrine disorders like thyroid disease can cause irregular periods, too, as can polycystic ovary disease, a hormonal glitch that may lead to obesity, acne, and excessive hair growth.

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