yesterday around 5pm i all of a sudden came over very ill, i felt very weak,had major shivers so much so i had goose pimples, i checked my temp and it was very low,and felt tired,around 2 am i begam to get shap painfull chest pain on my left side this continued all through the night till late this afternoon, now the shivers are gone but i still dont feel right and i am now feeling very sick with a headache, i have been taking paracetamol and it doesnt seem to have helped any ideas what this could be