Your first name of Grethnie has given you energy, drive, and ambition, but also an almost excessively strong-willed and independent nature. You could experience a great deal of pleasure in outdoor physical activity or sports. You often feel you could have achieved even better results. Lavish displays of emotion tend to embarrass you, making you feel self-conscious and inadequate. You expect a great deal of yourself and of others, and you are seldom satisfied with your accomplishments. Exploring new areas on your own, or with a few close friends, holds definite appeal and offers a constructive outlet for your restless energy. When you are annoyed, you must guard against a strong temper and the expression of intolerance and criticism. It makes you self-sufficient and self-reliant. Intensity affects the senses of your head as well, whereby you could suffer with migraine headaches, sinus problems, or throat and swallowing difficulties. You become intensely involved with everything you plan to do, but the stress arising from frustrating obstacles or misunderstandings with others could prompt you to be intolerant and sarcastic in your expression, with breakdowns in congenial relations with family and friends a possible end result.