Patients show excessive and abnormal excitement of the nervous system, the symptoms are verbal, emotional instability easily agitated, impatient, often insomnia at night, always feel hot, easy to sweat.

Two, goiter

Most hyperthyroid patients suffer from varying degrees of goiter, most of the goiter is diffuse, medium texture, no obvious pressure pain, the degree of enlargement and hyperthyroidism is not obviously related to the degree of lightness and severity of hyperthyroidism, can be moved up and down with the swallowing action. There is tremor on palpation and vascular murmur on hearing. The upper and lower poles of the thyroid gland can be touched with tremor, and the thyroid gland is not enlarged in a few patients.

Three, eye protrusion

About 50% of hyperthyroidism patients will appear eye lesions, two glasses eyeballs protruding outward, upward vision does not wrinkle forehead, downward vision of the eyelid is late to fall; protruding eyes, less transient eyes, cleft wide cohesion is difficult. Benign protruding eyes without feeling, malignant protruding eyes with many symptoms. Hyperthyroidism patients pupil to some extent the phenomenon of dilation, severe will have difficulty closing the eyes.

Four, cardiac response

Hyperthyroidism also has a great impact on the heart, patients often panic, chest discomfort, heart rate arrhythmia, and even atrial fibrillation, if not timely treatment control, in the end, there will be heart failure.

Fifth, endocrine disorders

Some patients with hyperthyroidism will have increased food intake, eat a lot but easy to get hungry, increase the number of stools, diarrhea, endocrine disorders, appearance of emaciation, and often feel weak.

The neck enlargement you mentioned is actually a goiter, an early symptom.