13 Conditions That Mimic Fibromyalgia
Hypothyroidism—an underproduction of hormones by the thyroid gland in the neck—is caused by an abnormal immune system response that mistakenly attacks normal body tissue.
In this case, the immune response causes a drop in thyroid hormone, a key player in how the body uses energy.
Having low levels of this hormone can cause people to "hurt all over" says Dr. Clauw. The condition is also linked to a slew of other symptoms that overlap with fibro, such as fatigue, depression, memory loss, and constipation.
"We generally recommend to check thyroid function before diagnosing someone with fibromyalgia," says Dr. Clauw.
Next: Irritable bowel syndrome
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