### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Sometimes I have bigeminy for hours or days. I have been diagnosed with thyroiditis and subacute hyperthyroidism, but have no other indicators of heart disease. I am a 61 year old male. My concern is mainly with sleeping, as the bigeminy is very distracting when I am lying quietly in bed. I take beta-blockers (atenolol) and use lorazepam to get to sleep at night. I am also on terazosin originally for high blood pressure and now for BPH. I have had lifelong high blood pressure and I have polycystic kidney disease. Currently all kidney readings are within the high normal range. I also take beclovent for asthma prevention. I exercise regularly (about 5 hours a week of tennis and other short workouts).

### output:

Hello! Thank you for asking on Chat Doctor! Regarding you concern I would explain that in your situation there are some elements that may trigger those abnormal ectopic beats.(1) Thyroiditis with acute hyperthyroidism, or even subsequent hypothyroidism may trigger arrhythmia, mainly supraventricular (extrasystolic arrhythmia, atrial fibrillation or flutter, etc.). This is because of excessive sensitization of the tissues from catecholamines.(2) Your pulmonary problems are a very favorable environment to exacerbate arrhythmia. A compromised functional lung status with its derived complications I'd frequently associated with cardiac ectopic beats.(3) Kidney disease and High BP, my lead to LV myocardial hypertrophy, and predispose to arrhythmia.(4) Ischemic heart disease may be another explanation. Though there are no clinical signs to confirm that. Because you have coronary risk factors (like high BP, kidney disease, eventual dyslipidemia, etc.) you should pay attention even on that direction. Hope to have been helpful to you. Greetings! 