According to Healthgrades, the headaches commonly responsible for forehead pain include migraines and tension headaches. Other causes of forehead pain include eyestrain and withdrawal from alcohol or tobacco. Sudden forehead pain coupled with leg weakness is indicative of stroke, meningitis, intracranial hemorrhage or subdural hematoma.
According to WebMD, migraine pain is described as pounding, throbbing pain. Migraine headaches can last from about four hours up to three days. Symptoms experienced with a migraine include increased sensitivity to light, noise or smells; nausea; vomiting; upset stomach and loss of appetite. Tension headaches are also referred to as chronic daily headaches, and these headaches are the most common kind of headache affecting adults and adolescents.