Having heart palpitations for the last 3 days?

I've been having heart palpitations for the past three days. They have been occurring around noon and take place about every 10-20 mins for 2-3 hours. I haven't drank any caffeine, or ate any sweets. I am prescribed 1000mg Vicodin for a shattered elbow, and am wondering if the Vicodin can cause heart palpitations. I have a stethoscope and listened to my heart and its stopping; skipping when it flutters. Has anyone experienced heart palpitations when taking Vicodin?