What Causes Sudden Onset Of Migraine Headache And Low Grade Fever?

I was viciously attacked by some bug. I became so achy and wobbly on my feet, I had a migraine headache, I have run a low grade fever. but I also have remained Hungry and have not experienced any type of nausea. after two days I finally have been able to get up. and feel a bit better. What did I contract.