What Causes Heart Palpitations While Sleeping, High BP And Anxiety?

when im asleep my heartbeat climbs to 110 beats per minute. In January I had all the symptoms of a heart attack. fast heartbeat burning in my chest n down my arms my blood pressure would climb to 200/90 they did an angiogram no heart blockage but cardiologist said my veins in my heart are too tiny. I use a CPAP machine but I still have similar episodes during the night. Im on Effexor and Alprazaline for anxiety. But why is this still happening to me. im afraid to go to sleep at night because this comes on around 3 to 4 am. I feel like im fading away. my arms n legs very weak. I need to drink milk or carrot juice to feel better. I eat good during the day but like the food doesnot nourish me. They did an endoscopy founf prepyloric stomach and gastric body and my colonoscopy they found diverticulosis in my entire stomach. Sorry don t have any credit cards to pay for the answer.