I have had a pulsating pain in my left temple for approx.. 18 hr.  Yesterday evening before bedtime, I took soon Tylenol - that seemed to help and allowed me to sleep.Now 12 hr. post 2 extra strength Tylenol,  the pulsating pain is back.Should I see my MD?
Yes see a doctor.it could be migraine or due to high blood pressure. If both normal then ct scan of head may be required. Wait and watch. BP is most frequent common cause.