Check out the posts about SVT's
You definitely should get your heart fully evaluated. Tell the doctor about the racing heart and the aching that accompanies it.
Ask the doctor if you should get a nuclear medicine test to check for any blockages in the heart that might be causing the pain.
Ask the doctor about a doppler check of your carotid arteries in your neck to see if they are fully patent (clear of any blockage), since the pain is extending up that way.
Ask your doctor for an event holtor monitor, which can monitor your heart rhythm to learn what kind of rapid heart rate you are having.
Check with your doctor to see if the blood pressure medication you are on will help with these rushes of heartbeating.
You Need to Go to The ER as you could have tacharydia tachaypenic or premature atrial tachcarydia or proxmal atrial tachacardia