Preeclampsia???

I am 18 weeks and a few days. I have had some concerns about my body lately, so i decided to do some research. I dont see my doctor again until a few more days, but i am curious to see if anyone else has dealt with this. I think that I have developed preeclampsia. I have started to get headaches that wont go away when I take tylenol and seem to last all day. I am overweight, and my job stresses me out a lot, because we have had high volumes since i started and we are expected to work overtime. So for over a year now i have been working anywhere from 50 to 55 hours a week. My blood pressure also seems to go back and forth between the good range and into the hypertension range. Just depends on the day, how stressed out I get that day from work, and every day life at home. I plan on asking my doctor about my concerns and being tested for preeclampsia when i go again. I am just wondering if it turns out that i do have it, then what?