HI Doc, I am 37, not obese but not fit either. No family history of anyone dying from heart disease before 50. I do suffer from anxiety and am on Lexapro but forget to take it some days. Yesterday afternoon, around 5pm I had a double shot expresso machiatto from starbucks and it kept me up last night. My heart felt like it was skipping beats every minute or so...and then I got anxious and felt like it got more frequent. I fell asleep at say 1
Hi, caffeine itself is known to increase the heart rate, blood pressure and so for sure cutting on your caffeine will help you to avoid such episode and get good sleep.  Many a time because of our anxious nature there is subjective feeling of palpitations when our heart rate increases transiently, (which is a normal phenomenon), however which triggers a cycle whereby the brain register s the normal beating too as palpation because our mind become s more receptacle.  So try cutting such cycles short by Not thinking much. Regards Chat Doctor.