Swollen feet and joints in fingers

Is it bad that I stand for like an hour or a few on my feet and they swell up so bad that walking on the heel of my foot hurts also the top of my foot. The joints in my fingers hurt as well as if I did a full on work out on them. Is it bad? Is this preeclampsia, I need Serious advice on what to do or go about this. Ps; I rarely eat salty foods. Mom says rest my feet up high but I feel like it’s a sign of labor coming super soon