Since, last Saturday, I have had a sore throat, that aches to my ears, swollen lymph nodes, (visibly swollen), and a series of canker sores and ulcers forming in my mouth. I went to the doctor for the simple fact that my family thought I had strep throat. When I was tested for it, it came up negative. I am in so much pain to where it hurts to even drink anything, and I have had mouth ulcers but never canker sores. What is wrong with me?