My son is 12, he hasn't been feeling good for three days now. The first night he awoke screaming in pain because his stomache hurt and he felt if he got up he was going to be sick,he also had a severe headache with cold sweats. The second day he felt weird all day, come dinner time he started getting a fever and bad headaches again, so i gave him advil. He woke up around 2 a.m with diareha,headache,fever around 101.8 and cold sweats again. The next day he had fever and headache again, so more advil. He also had the fever, haedache and cold sweats again. We are now on day 4, he awoke with a headache, feeling dizzy and a fever of 101.9. It dosen't look like he has any bites or ticks on him either. Please help, don't know what to do.