Hi everyone! I am new so please excuse me if I make a mistake. I am waiting to get a sleep study soon. I have been having random episodes where my heart rate will shoot up and then quickly plummet. I saw a cardiologist and they tried to blame stress. I am aware apnea can cause some problems with the heart. Anyone ever experience that or know of it? It happens so quickly but is debilitating. I would love to know someone had this happen ans got better! Thanks and sweet dreams!