THURSDAY, Dec. 15, 2022 (HealthDay News) — Having short, painful headaches for many days or even weeks in a row may signal that you’re more likely to have other medical woes, researchers say. These “cluster headaches” are extremely painful and can last from 15 minutes to three hours at a time. And people who have them may be more than three times more likely to have other medical conditions, such as heart disease or mental disorders, the new study found. “Around the world, headaches have an incredibly negative impact on people’s quality of life, both economically and socially,” said study author Caroline Ran, of the Karolinska Institute in Stockholm, Sweden.…