I'm an average size 51 year old woman. My cholesterol is at 268 and I have recently had fluctuations of high blood pressure. My doctor has given me a diuretic to reduce fluid. I recently wore a 24 hour monitor because it felt like I was having arrythmias and it turned up premature heartbeats. My most severe problem is, I'm waking in the middle of the night, gasping, feeling as if my heart has stopped. My doctor told me my heart does "re-set" itself after a premature heartbeat and this is what I'm feeling. These "episodes" have been averaging 3 to 5 a night and are terrifying. I'm afraid to go to sleep for fear I won't wake. Could my heart be stopping momentarily or am I dreaming this?