Migraine Scenario

You are called to a 37-year-old male for a severe, throbbing headache. On arrival, you are taken to him in his room where all lights are off and he has his head hidden under his pillow. He has a history of migraines, however this one is different. He is prescribed sumatriptan for his usual migraines but this time they have not worked. He has also infrequently taken paracetamol, ibuprofen, and codeine, but it only helps for a short while. It has been over 3 days since the onset of the headache and his concern has been growing as it hasn’t eased. 

Your initial observations are: 96 HR, 20 RR, 136/89 BP, 99% SpO2, 4.1 BM and 36.5 Temp.