I installed 2 implants in a young healthy female in the maxillary second molar and second premolar at the time of extraction of these 2 teeth. I did a Sumers lift [osteotome technique] so that I could extend the imlants into the maxillary sinus. Patient did not experience any pain the region of the surgery. However the patient suddenly developed a high fever of 103.5 F and has been shivering. I had already prescribed amoxicillin 500mg tid with ibuprofren and paracetamol [acetaminophen]. Do you think the spike in fever and shivering are related to the implant surgery? What do you recommend that I do?