I'm sick. I have a slight sore throat, weakness in limbs, dizziness, fever, dull headache around the front and sides, and blood from back of throat?

Viral. Upper resporatory infection, you will get better. Sometimes, it is followed by a bacterial infection. Then you need an antibiotic.
Virus. This is most likely a viral upper respiratory tract infection and generally runs its course in 5to7 days without specific treatment. Call your physician if symptoms persist longer or worsen with appearance of fever, chills, sweats or severe cough with discolored sputum.