Thyroid is a disease in which you can have fatigue and weight gain. It affects the functioning of thyroid gland, which causes symptoms. Hormones produced by thyroid gland control the matabolism of our body. Thyroid disease can impair the metabolism. The disease causes anxiety, sweating and hairfall. The neck becomes swollen due to enlargement of thyroid gland. Women are affected by this disease more than men are. Weight changes without reason are the most common symptom of thyroid disease. Weight gain is a symptom of hypothyroidism while weight loss is a symptom of hyperthyroidism. Following are the 10 signs you have a thyroid problem and 10 solutions for it.