
What makes a headache dangerousDALLAS, June 30 (UPI) -- Intensity is not necessarily a sign of how serious headache pain is but there are red flags to watch out for, a U.S. neurologist says.Dr. Ahmed Jafri of the University of Southwestern Medical Center in Dallas says anyone who frequently uses pain medication to self-treat chronic headaches should seek medical help."A headache may stem from a harmless problem, or it might be a sign of a life-threatening disorder," Jafri says in a statement. "There are certain red flags that should send a person to the doctor, or even an emergency room."Jafri says any of the following symptoms warrants immediate...