What Causes Fever And Bumps At The Back Of Throat After Oral Sex?

I have had oral sex with another male (gave and recieved) both swallowed each other s cum and two days later I fell with a fever and puked and then slept it off.. The next day I started getting scared I had contracted an std, and now I am going to be tested next Thursday, and at the moment I have very mild dry cough and have now notice larger bumps at the back of my throat but they are painless at the moment, I need advise as to what I might have..