Kindly don't take Valium without consulting a doctor . If your headache is not relieved with a round the clock paracetamol dose better to do evaluation.
Next Steps
Need to check BP
Need to rule out Sinusitis/ Migraine
Need to rule out any intracranial diseases
Health Tips
If you present with intractable vomiting, intolerable headache , blurring of vision, slurring of speech , numbness or weakness of limbs kindly go to the Emergency Room/ Casuality urgently