Palpitations, blood pressure high.

I am always aware of my palpitations even when i am at rest.. this all started 4 years ago after i was diagnosed with GERD. I can even feel my heartbeat in my neck, ears... I am dizzy most of the time. I also get high blood pressure when i am off propranolol.. even when i am on it.. rapid hearbeats, sweating, nausea, irritability... when i stand up, i get rapid heartbeat.. i walk my heart starts pounding.. my ecg and echo came normal.. Sometimes my heartrate is 110. Mainly its 70 but i can still feel my heartbeat.. i am aware of it everytime. It never used to happen.. Sometimes i feel like i lose control of my body.. it frightens me.. My heart also pains sometimes.. while playing it happened once... After s*x, one day my heart ached so bad. I had to lay for 15 mins to get over it..