Urine related query. Or others issues?

I had diagnosed urine test. My urine test result is ph-8/10 protein-detected( traced). Others are normal. Is it safe? I checked on google it shows if protein is found it is early sign of kidney damage. Is it true.. I had a back pain little bit. After one year or more than I had fell down when I had walked. I fell down right side l. That time no pain i had feel but now 1 months I feel the pain lower back side that is right side . Now I had done culture test but I found it is negative. Then doctor adviced me to UCG whole abdomen it also found nothing. Then doctor adviced NCCT KUB. I had done it but report will be available on Monday.. This is total history. Is the pain happen due to fell down or others issues?