What should you know about toxic hyperthyroidism?

Thyroid hormones influence the pace of many body functions. When levels are too high, a person may develop Palpitations, tremor, nervousness, excessive sweating, Heat Intolerance, difficulty sleeping, loose stools or Diarrhoea, and reduced tolerance for exercise. Some people notice Night Sweats or Feeling Anxious. Symptoms can be subtle, especially in older adults, and they do not identify the cause by themselves. A clinician uses the pattern of symptoms, examination findings, and thyroid blood tests to confirm hyperthyroidism and look for its source.

Book a medical assessment if symptoms persist, recur, or interfere with daily activity. Bring a list of medicines and supplements, including products containing iodine or thyroid hormone. Until reviewed, limit activities that clearly trigger racing-heart symptoms, keep hydrated during sweating or diarrhoea, and avoid changing prescribed treatment on your own. The clinician may discuss treatment that reduces hormone production or controls symptoms, depending on the cause and your other health needs.

Seek emergency help for chest pain, fainting, severe breathlessness, confusion, a very fast or irregular heartbeat, or a high fever with intense agitation or weakness. Arrange prompt review for persistent Palpitations, worsening breathlessness, severe diarrhoea, or inability to keep fluids down. Untreated hormone excess can place extra strain on the heart and other systems, so rapidly worsening symptoms should not wait for a routine appointment.

Ask which test results show hormone excess, what may have triggered it, how quickly treatment should work, and which symptoms require emergency help. Check whether any current medicine or supplement should be stopped, continued, or monitored.