Hi, I Have Been Suffering From Racing Heart, And High

Hi, I have been suffering from racing heart, and high blood pressure. After medication my blood pressure has come down but my resting heart rate continues to increase. I also have a flushed face. When my heart rate races I gat very breathless.
My doctor thinks I may be producing to much adrenalin. I will be doing a urine test to see if this is the case.
What is the treatment for adrenal hypertension if that turns out to be what is going on?
By the way I have underactive thyroid and polycystic ovarian syndrome.