Hi, I am a 31 year old female. As the past 4days I have had a throbbing pain in my right lower back just above my hip. The pain comes and goes but seems to be getting sharper also I sometimes can feel it around my waist and also inside of my right groin area. My back feels like something's inflammed or swollen inside. I was at the doctors on Friday but he didn't know and is referring me for an ultrasound but could take up to a month. I had no pain all day but tonight its quite bad i am also very bloated in my lower abdomen . I am extremely scared and just don't know what it is ?