Hello, My healthy 13 yr. old son was fine this morning then suddenly he was complaining of a bad headache and was freezing cold. I took his temp with 2 different thermometers and the temp was 95.6. He was very pale and cold. I bundled him up (inside home temp was 67) and gave him hot tea and hot soup. The temp came up slowly, was feeling better and headache went away. Temp now is 96.7 and 98 if he leaves the digital therm. in his mouth for a few minutes. Color has returned to his face and he feels much better.Headache is gone. He had the flu last weekend for 3 days with a temp of 103.2 but has recovered and was well all week. I may take him to the Dr. tomorrow for a check up. Any idea what could be the cause, and would if have been safe to have given him ibuprofin (for the headache) with a low body temp?? I would like to know in the event this happens again.