High Blood Pressure - 21 Year Old Female, No Medical Reason?

Hi there,

I am a 21 year old female, and around 6 months ago I was 'diagnosed' with hypertension. It was initially found when I complained to my doctor about having severe stabbing pains in the left side of my chest, which I have had since I was around 13 years old. It averages around 160/115. Originally my GP was of the opinion that it was the contraceptive pill causing the problem, so I switched to the Implanon, but it has not gone down. My kidneys, liver, heart (with an ECG) have all been checked, along with cholesterol and a million other things, and the only thing that's wrong with me is my Vitamin D is low. Otherwise I'm relatively healthy.

To give you a bit of information about myself, I am 156cm tall, weighing around 69 kilos, but very muscular and quite fit (with a body fat percentage of 24%). So, I suppose my BMI is high, however my GP is quite sure this isn't the problem given how muscular I am. I eat well, occassionally have too much salt, don't drink, don't smoke and exercise every day.

The most concerning aspect to me are the chest pains I experience. They come on very quickly and don't last long, but they cause me to double over in pain and sometimes travels down my left arm, which is especially distressing. I do suffer from some stress in my life, but it just seems like a lot for someone of a young age who is reasonably healthy.

Any suggestions for my case?