I am 44, When sleeping I often wake up because my heart is racing and pounding in my ears, I am not certain what a heart attach feels like but this scares me. My husband says as of late that I do not sleep well, I toss and turn and yell out in my sleep almost daily.
Hello, I would explain that your symptoms could be related to gastroesophageal reflux or a sleep disorder (including sleep apnea).  For this reason, I would first recommend taking an antacid or PPI (omeprazole, pantoprazole, etc.) before sleep.  If this does not help, I would recommend performing a polysomnogram and an ambulatory 24-48 hours ECG monitoring. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.