Go to your pharmacist and see if he has Ural sachets or some equivalent. The will help ease the symptoms until tomorrow. If you start to get a fever or backache in your lower back then don't wait to see your doctor and go to the A&E department of your local hospital. They will be able to see in a sample straight away what type of bacteria it is and start you on some type of antibiotic. (ex microbiology technician for 17 years) Hope you start to feel better soon.
Cheers