My boyfriend woke up 2 days ago with excruciating pain on his right side, stomach, back and testicle area. His face and lips became numb a few hours later while I was taking him to the hospital and he kept feeling too hot, then too cold. They took a urine sample to detect whether he had kidney stones, but today they said the test came back negative. He s taking some medication right now, but I m really concerned as to what might be the cause to all of this?