I am a 38 year old female having severe pain in my right side, underneath my right breast. It continues on to my back. It feels like I have pressure, like something is about to burst. Went to the ER, and they did a CT Scan, and a Ultrasound, and also took a blood and urine sample from me everything came back negative. ER doctor said gall bladder blockage maybe, or kidney stones. She doesn t know. But I continue to hurt, what is going on?!?!