I have mild fever dizziness, headache behind my eyes and I very painful cough. Both my throat and chest are on fire and I cough up blood. Is this flu?

Viral . This is probably an influenza like viral upper respiratory tract infection but I'm unsure of whether influenza is now prevalent in your part of the world. If you are coughing up more than traces of blood, a chest xray is indicated. However with irritation of the trachea from a harsh dry cough, flecks of blood can be seen. Drink fluids, take a soothing syrup like robitussinDM, Tylenol,see MD as nee.