This is odd. Yesterday evening I started shivering, I had a temperature. Headache, tummy ache and very thirsty. I had a piece of toast this morning. I still have a temperature, it comes and goes. No coughing or sneezing. On Tuesday night I had the same thing but worse. At one point I got very hot and sweaty and thought I was going to faint and I was nearly sick. Also indigestion. On Wednesday I felt very poorly, only ate a cracker and drank water. Thursday I was fine. A few months ago it was the same except I did faint and was sick. Has anyone else experienced this? A gp is ringing me this afternoon.