ventricular tachycardia
"Had implanted defibrillator fitted in UK in 2001, moved to Spain 2002, was getting occasional shocks and in 2006 prescribed amiodarone by cardiologist. Shock free for four years, but thyroid overactivity in 2010 caused change to different medicines. I get more shocks than ever and beg to go back on amiodarone even at reduced dosage, but no agreement yet. Had a shock whilst driving last week and two more today whilst relaxing by the pool. I'm nearly 77, alone in Spain, and have had enough of this. Can't drive again. Many problems. No side effects."