My head started hurting a few days ago, and it contuined on. I felt cold shivers, almost like a fever , but I ignored it and contuined on the day. And it got worse , so I took a nap, and woke up feeling as if I had to throw up. And on the way to the bathroom I vomited. My diet hasn t been good for the past few days and I haven t been out either due to intense studying and concentration. And I feel like I m about to have diarrhea. Could you pleas help me ?