I have traces of blood, leukocytes, and protien in urine. ?

I've been having sharp pain in my lower left abdomen. My doc did a urine test with the test strips and found traces of blood, leukocytes, and protien. I feel fine other than the pain in my side and it doesn't hurt that bad it just doest go away. I had x-rays done and they came back clean. I did a blood test and anther urine test and I'm still waiting on the results. My wife is kinda worried cause she read somewere that it could be leukimia. Any addvise would be appreciated. Thanks.