Hello
You mentioned that you are having fever for last couple of days . Now blood came out with
sneezing .
You are also having cold , headache ,
body ache,
sore throat and congestion .
But it is not clear that , you are having strep or not , this is your thought .
While blood was a clot NOT a part of brain ,so need not to worry.
However , this type of fever may be due to these possibilities , these include.
1
Tuberculosis , diagnosis can be confirmed by X ray chest , sputum and blood for cbc, esr .
2
Septic pharyngitis ,is the another most common cause of such symptoms .
3 Dengue is another reason of such fever , Serology test for confirmation as well as blood for platelets.
However, there are other many reason but physical examination is important so consult a physician and get his opinion.