headaches and migraine, combined with fever and loss of appetite

Hi,

Last tuesday I went out to drink(2 shots and two mixed drinks), but because I didn't eat anything and couldn't gauge myself I ended up throwing up. That night I went to sleep early and when I got up the next day I was still a bit nauseous and felt like puking. In the afternoon however, things got better. Since then, I have been feeling tired every day and cloudy minded, with varying degrees of headaches of migraines. On friday it got so bad that I got a fever. Over the weekend I got much more sleep, 10-11hrs per night, but as the day dragged on I got tired very fast and felt much better lying in bed all day.

What exactly is my problem right now? The only medication I took was a few aleve and advil. I have had very little appetite these days although my stomach clearly growls. I eat a lot less now and that alone concerns me. I have a feeling that I just got sick cause my immune system was weakened. But what can I do to speed up my recovery?