clueless

I have no idea how to proceed. My reports all seem normal. I got the Liver function tests done, the blood tests, urine test and the CT scan. Nothing reveals anything. But I still have the rigors. The doctors given me Nexpro which is supposedly for gastric problems. He also gave me a mild Antibiotic called bicef and a paracetamol. I took these for 2-3 days and the situation seemed under control. I dint have it yesterdy and there again i have the rigors. I have no clue how to proceed and what to do. Moreover i still have the red left eye. Is there anyone u could suggest who could help me? Or do u have any suggestions?