What Causes Numbness In Hands,feet And Knees With Swelling?

Hi, may I answer your health queries right now ? Please type your query here... I have numbness in my hands, feet, knees, legs and midsection of my body. It's a very abnormal sensation. My hands feel tight and swollen, but they are not. I have been to my Primary care physician, neurologist and chirpopractor. Blood work is normal so far (still waiting for red sep test, spep test, hemoglobin A1c test and Antinuclear Antibodies test to come back. So far, no can give me any explanation. Also, lower back is a little sore, not painful, just a little tender. Any ideas?