Nilza

For the past 3 days, I have been feeling cold (it's around 35 degrees here), shivering, not being able to eat, not feeling hungry at all.
today when I woke up, I spat blood, quite a bit.
I do not smoke or drink.
it's been 7 hours and now there's just a little bit, and sometimes there is no blood.
it comes from the throat, it's not from my mouth.
what could it be?
thank you.