Thanks for your replies. So far, the nifedipine has been a wonderful drug. My fingers still get cold, but they don't change colors, my fingertips do not swell, nor are they sore. Before this drug, my fingertips would get so sore and tender that I couldn't stand to touch them. I never got any ulcers or anything, but between being cold and sore, they were pretty useless.
I'm not taking the extended release yet, but rheumy offered it. He just wanted me to try it to see if I like it. I do--very much. Plus, I figure I'll get a headstart on keeping my blood pressure down. I don't have high blood pressure, and since I'm taking a blood pressure drug, I'm pretty sure high blood pressure won't be a problem, ever :0