Hi, I was diagnosed with a 4mm kidney stone 5 days ago (right side just above the bladder). Since then, I haven't passed the stone. Today, I have pain that is actually worse on the left side - lower beck, radiating up my back and down my left leg. My leg is also quite numb and my abdomen and legs are somewhat swollen. My weight has gone from 123-128 in the past 5 days as well. Should I be concerned? I have a follow up appt in 2 weeks with a urologist. thank you for any advice.