
Why do I feel palpitations, hand tremors, and insomnia?
I've been experiencing poor sleep quality lately, often suffering from insomnia, and now I'm having palpitations. I'd like to ask what could be causing palpitations, hand tremors, and difficulty sleeping?

Palpitations, hand tremors, and insomnia may be caused by multiple factors, mainly including the following aspects:
1. Physiological factors: Short-term occurrence of these symptoms may be physiological phenomena. For example, emotional excitement, excessive fatigue, or anxiety may lead to palpitations, hand tremors, and insomnia.
2. Heart diseases: Certain heart conditions, such as sinus tachycardia, ventricular tachycardia, and atrial fibrillation, may cause palpitations and hand tremors, thereby affecting sleep.
3. Endocrine diseases: Hyperthyroidism is a common endocrine disorder; excessive production of thyroid hormones can lead to symptoms such as palpitations, hand tremors, and insomnia.
4. Nervous system diseases: Neurological conditions such as Parkinson's disease and essential tremor may also cause hand tremors and palpitations, while simultaneously affecting sleep quality.
5. Mental disorders: Psychological conditions such as anxiety and depression often present with physical symptoms including palpitations, hand tremors, and insomnia.
6. Medication factors: Taking certain medications, such as antipsychotics, antidepressants, and antiepileptic drugs, may also result in side effects such as palpitations, hand tremors, and insomnia.