Holy shit. Are you serious?
Symptoms of Ebola virus disease: "The incubation period, that is, the time interval from infection with the virus to onset of symptoms is 2 to 21 days. Humans are not infectious until they develop symptoms. First symptoms are the sudden onset of fever fatigue, muscle pain, headache and sore throat. This is followed by vomiting, diarrhea, rash, symptoms of impaired kidney and liver function, and in some cases, both internal and external bleeding (e.g. oozing from the gums, blood in the stools). Laboratory findings include low white blood cell and platelet counts and elevated liver enzymes."
Sore throat and nausea are common symptoms of hundreds of things, but if you're concerned that you may have something serious and you really do have an infected classmate, it's in your best interest (<_< and the interest of others) to speak to your physician. However, if you continue to develop more symptoms (especially internal and external bleeding), I'd suggest skipping the middle man and just getting yourself to the ER.