stubbornness

I feel myself being really stubborn. Like...REALLY stubborn. I know when I'm like this, and I know it's not good, and it usually only hurts me, but I know because my face gets all pouty and grumpy and I just KNOW that I am not going to do whatever it is in the particular case. But I'm trying. So, when I went for my yearly physical, my doctor decided that I should start taking blood pressure medicine because it's been high for a couple years. My doctor's apptmt was, what, like 3 weeks ago or something?...anyway, I just today took my first dosage of the medicine, with the potassium powder stuff, and I feel like I never want to take it again. Not because it affected me horribly or anything, (although I did not like the taste of water with the powder in it.) I put every medication I have been experimenting with for the last year or so, and hid it away. I don't want to take anything now. I know not to just stop what I"m taking regularly (just one for depression), but I'm going to talk to my doctor (whenever my next appointment is) and see if there is anything I can do so that she won't insist on me taking this medicine. I"m not sick. I'm not old. I want to take good care of myself, but I want to do it without medicine. I need to get her okay though. But I"m not taking the blood pressure medicine again until I talk to her. Digging in my heels...probably not the smartest, most mature way for me to behave.