Finding that 4 hours after going to sleep my pulse rate climbs up to 130 bpm! After waking with a pounding heart, if I get up and walk around, it goes back to normal within minutes, 80 or less, bpm and then I can resume sleeping. After sleeping the second time, it may rise again, just not as high. Only med. being taken now is cardizem and a generic name = norvasc, minimal dosages.Problem existed prior to these meds. but seems to have increased lately. Anyone else having similiar problems and have you found a remedy? I am looking forward to a sound nights sleep.