Hi, I Have Sharp Pain Coming & Going In My

hi, i have sharp pain coming & going in my left lower side & sometimes it travelles around the dide of my back it happened one day at the weekend & throughtthe day it travelled down my left leg at the back as far as my knee i seen my gp on the 27th last mth & told her about it she wasnt sure what it could be & asked for a urine sample to be sent off to rule out kidney infection i had this pain about a week before i seen her & still have it i phoned today & the receptionist said i have to leave in another one as it showd abnormal growth i asked what that ment & she said some how it got contaminated ive no problems going to the toilet no running frequently or stinging or burning sensation, ive had a period on 22nd last mth & about a week later my breasts have become sore & still are,im hoping you could please give me some kind of idea of what you think might be going on.thanks catherine