Early signs of Preeclampsia?

I am 25 weeks pregnant. I had some cramping last night so I went to the hospital. They said I was dehydrated, made me drink some water and cranberry juice then sent me home. I followed up with my Doctor today. She found traces of protein in my urine. She didn't seem concerned, but she never seems concerned about anything. My blood pressure has slowly been creeping up as the weeks go on. It started out around 106/75 and is now up to 118/80. Sometimes when I am at work it will get up to 136/85 but that is the highest I have caught it so far. I suffer from headaches dizziness and rapid pulse (115) sometimes too. My toes are swollen and my face might be I'm not sure if it's swollen or just weight gain. I have gained about 15 lbs so far. I also failed my glucose test last week (143) so on Friday I have to do the 3 hour one to find out if I have gestational diabetes. I realize there doesn't appear to be a threat right now, but is it possible that I am developing it over the weeks here. I'm on my feet all day and they really don't care about breaks. My job looks at it like "you're the one who got knocked up and we are busy so deal with it."