hi there, ive had the shakes and shivers for the past few days, i havent been able to eat very much but ive been drinking a lot of fluids, my throat is painful to swallow under the jaw, and ive been vomiting streaks of blood, i keep retching and paracetamol isnt working, i cannot book a doctors appointment due to only registering tonight as im at uni, so what would you recommend i do?