Extreme symptoms! Am I dying?

For the past few days now I have been feeling not the best. It seemed to start last week when I almost fainted while saying bye to my bf. I felt dizzy and sick to my stomach and extremely tired. This past fall I had mono, so I thought maybe it had come back, but a few days later I felt fine. Now I have started feeling sick again, but it seems to be worse.
Symptoms: pains in the back of my head and the front; lower back pains; I get the chills but my bf says I have a fever; I wake up feeling really warm; dizzyness; nausea; lack of appitite; blurred vision; fatigue; sore eye-sockets; occasional pain in the upper part of my left arm just befor the elbow; and the lower inscisors of my mouth feel strangely irritated, almost itchy.
Please, I have no clue what the hell is going on. It seems to come and go, usually not as bad in the morning, so I start to think I'm fine, but then a few hours later it comes back. I'm just about to break into tears cuz this is really starting to scare me, so if anyone could help me, please. Thank you in advance.