I agree that with the symptoms you've mentioned you need to get to a doc and get checked... be sure to tell them about the arm pain, any numbness, tingling etc...

these symptoms can be your body's warning system letting you know something is going on...

to help lower the pressure, lay off salt and caffeine. that means canned foods (soups etc), processed foods and fast foods... my mom has been on meds for years and has to watch this closely...