Hi welcome to HCM... You have pain only since today ... Brufen antiinflammatory drug taken .. Paracetamol like safe drug can be used if still having headache ... Mostly this temporary headache can be from viral infection , overexertion , irregular diet , lack of sleep etc... So take rest ... Take regular diet , enough sleep and avoid smoking ... If headache increasing than investigation needed with blood pressure measurement , otological examination etc.... Take care Advise : If headache not resolved with rest than consult physician for examination and subsequent management... Hope this will help