I'm 21, and lately I've been feeling really weird. Every night I have horrible leg cramps (even though I take potassium), and all during the day I am so dizzy that I can hardly stand up straight. During the day my fingers get swollen and painful, sometimes the pain is mild, but other times it can get much worse. My lower back is also so sore I can't relax my back when I sleep, or when I stand. The lower back pain started a few months ago with the finger swelling, but the dizziness and cramps are new this week. Just to rule it out, I took a pregnancy test that came back negative. I don't have insurance and would like to avoid the doctor, but the dizziness and back pain are really affecting my life. Anyone have any idea as of what might be causing this???