A blood pressure reading of 215/60 is bit unlikely and I suspect a reading error. The diastolic pressure - 60mmgHg is very low for a systolic pressure of 215 (unless you have some very rare heart conditions). And without treatment it will not come down this quickly.
Either way I would like to know whether you are on any medications for hypertension now ? If so have you defaulted on any medications recently ?
Do you have weakness of any limbs ? Any visual disturbances ? any chest pain ? any unusual symptom as a matter of afact since yesterday ?
You can reply as a followup
Thank you